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Canon PowerShot G2Canon updates their very popular G1 with a 4 megapixel CCD and improved color management. Review First Posted: 08/16/2001 |
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4 megapixel CCD (3.87 effective) for 2,272 x 1,704 pixel images | |
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Auto, Scene Program, Program, and Manual exposure modes | |
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Unique tilt/swivel LCD panel | |
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Accepts Type II CF cards (MicroDrive compatible) | |
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RGB (vs earlier CMYG) CCD filtration for improved color. |
Manufacturer Overview
Canon U.S.A. has long been a dominant player in the film and digital
camera markets, well-known for its high-quality optics, technical innovations,
and aggressive product development. Since the beginning of this year (2001),
Canon has released a full complement of new digital cameras, all designed and
engineered to live up to Canon's competitive standards. On the high end, the
PowerShot Pro90 IS incorporates a 3.34-megapixel CCD; 10X optical zoom lens
with image stabilization; and no less than 12 (!) EOS-based shooting modes.
Canon also introduced two new point-and-shoot digicams for the amateur market
-- the PowerShot A10 and A20 -- identical except for their 1.3- and 2.1-megapixel
CCDs, respectively. Canon also came through with two new ELPHs -- the 2.1-megapixel
PowerShot S300, with a new retractable 3x zoom lens, and more recently, the
PowerShot S110, with the same high-quality chip, but a shorter 2x zoom. The
ultimate vacation cameras, Canon added an optional underwater housing (safe
to depths of 100 feet) and a dye-sub printer kit, the CP-10 Photo Card Printer,
which outputs credit-card-size prints directly from the cameras in less than
60 seconds ($199 list).
Canon's latest addition is the PowerShot G2. One of the new generation of 4-megapixel
digicams, the PowerShot G2 is an excellent upgrade to Canon's popular G1 model,
introduced almost year ago. The G2 offers an impressive range of automatic and
manual controls, with a full Auto mode for point-and-shoot simplicity, three
preset scene modes for specific shooting situations, and a full Manual mode
that allows the user to select from five ISO equivalents and eight white balance
settings, set the aperture and shutter speed, determine spot or center-weighted
metering, and adjust image contrast, sharpness, and color saturation in-camera.
Its improved manual focus function features an automatic spot enlargement area,
plus an on-screen distance scale to make focusing clear and simple. You can
even select which portion of the image will determine focus and spot metering
readings! At less than $900, the PowerShot G2 is sure to be a hit with professionals,
corporate users, advanced amateurs, and even beginning photographers who want
a high-quality camera they can grow into.
High Points
Changes from the Canon PowerShot G1
As one of the most popular high-end "prosumer" digicams of the past year, many of our readers may already be quite familiar with the Canon PowerShot G1. The G2 is clearly based on the G1's design, with a very similar body design and control layout. There are a number of enhancements (beyond the obvious 4 megapixel CCD) that have been added though. We address all of these in the text of the review, but for convenience, have also listed them here, in this table we received from Canon technical manager Chuck Westfall. (Thanks, Chuck!)
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Body Improvements/Differences |
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Startup screen, startup sound |
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Maximum Resolution |
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Resolution Settings |
Medium1: 1600 x 1200 Medium2: 1024 x 768 Small: 640 x 480 |
Medium: 1024 x 768 Small: 640 x 480 |
Filtration |
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Signal processing speed |
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Noise reduction |
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Battery Life |
1000 images/LCD off 300 minutes/Playback |
800 images/LCD off 160 minutes/Playback |
Focusing Points |
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Manual Focus |
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Metering Modes |
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Manual exposure mode improvements |
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White Balance Modes |
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Program Shift |
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Color Effects Mode |
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Movie Mode |
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Continuous Shooting Speeds |
Continuous: 1.5 fps |
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Startup time, shutter lag, etc. |
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Interval between frames in Single frame mode |
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Slow shutter speed range |
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High shutter speed and aperture combinations |
1/800 f/3.5~f/5.0 to f/8 1/1000 f/8 only |
f/8 only |
Digital zoom function |
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Histogram display in Playback mode |
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Image magnification during playback |
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Image erase modes |
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RemoteCapture functions |
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USB Mounter for Mac OS 9.0 ~ 9.1 |
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Direct Print mode with CP-10 |
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Cropping in Direct Print mode |
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Accessory Compatibility |
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Supplied CF Card |
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Executive Overview
The PowerShot G2 is an impressive update to Canon's popular 3.3-megapixel G1 model introduced in Fall 2000. Sporting a larger 4-megapixel CCD (3.87 megapixels effective) and even more advanced exposure controls than its predecessor, the G2 has added a number of new features, including longer shutter speeds (up to 15 seconds), three-point adjustable focus / spot metering area, high-frequency fluorescent white balance setting, improved manual focus utility, DPOF print compatibility, and a choice of movie resolutions.
Fortunately, the G2 also carries over all of the G1's great design elements, including the rotating LCD monitor we like so much. The monitor swings out to face the photographer, reverses and locks back into the camera's back panel (screen side up), or extends and rotates up to 270 degrees. This flexible LCD design allows the photographer to compose images while standing in front of the camera (with the remote controller or self-timer), or to hold the camera at various angles, such as overhead or waist-level. Most important is the ability to store the LCD face-down in its recessed compartment, protecting the delicate screen from fingerprints, scratches, and nose grease!
Though slightly larger than the G1 model, the G2 is still very portable, measuring only 4.7 x 2.4 x 3.2 inches (120 x 62 x 80mm) and weighing just 18 ounces (512 grams) with the battery pack and CompactFlash card installed. While this may seem a little hefty when compared to other compact digicams, the G2 is very manageable, considering the extensive features and controls it offers. It should fit easily into a large coat pocket or purse, and comes with a half-inch neck strap for added convenience. The slightly thicker body and convex front panel also provide a more substantial right hand grip than the G1.
The G2's eye-level optical viewfinder zooms along with its 3x lens and features a central autofocus / exposure target for composing images. The diopter adjustment dial on the left side of the eyepiece controls the viewfinder focus for eyeglass wearers, and two LED lights on the same side report the camera's ready status. The LCD monitor display is activated by the Display button, which also controls the monitor's information readout. When in Shooting (or Record) mode, the LCD reports the exposure mode, flash setting, single or continuous capture, metering, and quality settings. New on the G2's information display is a tiny histogram (in Replay mode) that reports the tonal distribution of the image. Any overexposed highlights flash in black and white on the screen to warn you of potential problem areas. A small status display panel on top of the camera reports settings such as file size, battery power, the number of frames remaining, and various other functions as they are enabled.
The telescoping, 3x optical 7-21mm zoom lens (equivalent to 34-102mm on a 35mm camera) offers both manual and automatic focus control. The through-the-lens (TTL) autofocus system operates in either Continuous or Single Autofocus mode, controlling how often the autofocus mechanism adjusts the focus. You can also assign the focus area to one of three points in the frame (and optionally link it to the autoexposure mechanism). Manual focus mode is accessed by holding down a button on the upper left side of the camera and adjusting the focus with the Up and Down Arrow buttons on the back of the camera. A distance scale on the LCD monitor indicates how far you are from maximum and minimum focus, reporting the distance in feet and meters. An improved Manual Focus display also enlarges the center portion of the frame, so that focus is easier to determine. Focus ranges from 2.3 feet (70cm) to infinity in normal mode, and from 2.4 inches to 2.4 feet (6 to 70cm) in Macro mode. Digital zoom is controlled through the Record menu, with enlargements to 3.6x. (Remember that digital zoom only enlarges the center portion of the CCD image, therefore compromising image quality by increasing noise and softening the image.)
The G2 provides as much or as little exposure control as you want. The main exposure modes, which Canon refers to as "Creative Zone" functions are selected using the Mode dial on top of the camera. These include: Auto, Program AE (P), Aperture-Priority (Av) , Shutter Speed-Priority (Tv), and Manual (M). Shooting in Auto mode puts the camera in charge of everything except the flash. Program AE lets the camera choose the aperture and shutter speed settings, but gives you control over all other exposure options. Aperture and Shutter Speed Priority modes allow you to set one exposure variable (aperture or shutter speed) while the camera chooses the best corresponding one. Manual mode gives you full control over all exposure controls. The camera's aperture can be set from f/2-f/8, and the shutter speed ranges from 1/1,000 to 15 seconds.
The remainder of the G2's extensive exposure controls are accessible through external control buttons or the on-screen Record menu. They include a White Balance setting with eight options: Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Flash, and Custom; adjustable ISO settings from Auto to 50, 100, 200, and 400; Exposure Compensation from -2 to +2 exposure values (EV), in one-third-step increments; Auto Exposure Bracketing (AEB) from +1/3, 0, and -1/3 EV to +2, 0, and -2 EV (a total of three exposures, with adjustable step sizes ranging from 1/3 to 2 EV); a choice of Center-Weighted Averaging and Spot Metering modes, and Automatic Exposure (AE) Lock. The G2's built-in flash offers five operating modes (Auto; Red-Eye Reduction-Auto; Red-Eye Reduction-Flash On; Flash On; or Flash Off) and a Flash Exposure Compensation control from -2 to +2 EV in one-third-step increments. The Flash Exposure (FE) Lock function (* button) allows you to lock the flash exposure setting for a specific portion of the frame. A hot shoe accepts either dedicated Canon strobe units, or generic "dumb" third-party flashes.
The G2 also offers several special shooting modes accessed through the Mode dial (Canon refers to these as "Image Zone" modes). They include Pan Focus, Portrait, Landscape, Macro, Night Scene, Color, Stitch-Assist, and Movie. Pan Focus, Portrait, and Landscape all make automatic camera adjustments to optimize shooting under specific conditions. For example, the Pan Focus fixes the lens focal length to its widest angle setting and hyperfocal distance to give you maximum shutter speed and depth of field to cover unpredictable subject movement. The Portrait mode uses a large aperture to focus on the subject, while maintaining an out-of-focus background. Landscape mode slows the shutter speed and maximizes depth of field.
Night Scene mode illuminates your subject with flash and uses a slow shutter speed to evenly expose the background. The Stitch-Assist mode is Canon's version of panorama mode, in which multiple, overlapping images can be captured horizontally, vertically, or in a clockwise grouping. Images are then "stitched" together on a computer using Canon's bundled PhotoStitch software. Movie mode allows you to capture as much as two minutes of moving images and sound at approximately 15 frames per second, with a choice of 320 x 240- and 160 x 120-pixel resolution. The Color shooting mode captures images in Vivid or Neutral color, B&W, or Sepia tone.
Other special shooting modes, accessed via on-camera buttons or the Record menu, include: Macro, which allows you to photograph subjects within a range of 2.4 inches to 2.3 feet (6 to 70mm) at the maximum wide-angle setting, and from 7.9 inches to 2.3 feet (20 to 70mm) at maximum telephoto. Continuous Shooting mode captures multiple, successive still images, at about 2.5 frames per second, as long as you hold down the Shutter button. (The number of images and actual shot-to-shot speed depend on several factors, including image size/quality and the amount of memory remaining on the flash card.) There's also a High Speed Continuous Shooting mode for faster captures. The Self-Timer / Wireless Remote Control mode can be used to activate a 12-second countdown shutter-release function, as well as trigger the shutter remotely with the accompanying wireless infrared controller.
Images are saved onto CompactFlash Type I or II memory cards, with available resolution sizes of 2,272 x 1,704, 1,600 x 1,200, 1,024 x 768, or 640 x 480 pixels. Three JPEG compression levels are available, as well as a RAW data file format, which results in a higher quality image compression (Canon ZoomBrowser EX software is required to process RAW images). A USB cable is provided with the camera for speedy connection to PC or Macintosh computers, and a software CD offers an impressive selection of utilities. Canon's own Digital Camera software package includes tools for downloading and organizing images, processing RAW files, stitching images captured in Stitch-Assist mode, and a unique application that allows you to operate the camera remotely through your computer (RemoteCapture 1.1). RemoteCapture not only controls the shutter, but provides a histogram of the subject so that you can check the exposure.
US and Japanese G2 models come with an NTSC cable for connecting to a television set. (European models are equipped for the PAL standard.) Combining this video composition and playback tool with the remote control capabilities can turn the camera into a very useful presentation tool.
Power for the G2 is supplied by a rechargeable (high capacity) BP-511 lithium-ion battery pack and AC adapter, which are provided with the camera. A separate battery charger is available as an accessory, as well as an AC adapter kit, which plugs into an automobile cigarette lighter.
The G2 offers the extensive exposure controls we're accustomed to seeing in much larger digicams, with the benefit of a reasonably slim, portable camera body. The larger CCD captures bigger images with great quality, and the varying levels of exposure control provide complete flexibility. Improved exposure controls and added features make the G2 an excellent choice for any serious amateur or experienced photographer who wants a highly sophisticated and portable digicam solution. Given the success of the G1 model, we think the G2 will do extremely well.
Design
Building upon the solid and sophisticated body design of the previously-released
PowerShot G1, Canon has introduced very subtle improvements in the G2's overall
body design. The slightly thicker body (approximately 0.7 inch) enables a much
larger hand grip on the right side, while the champagne-toned, metal alloy casing
gives the camera a warmer color tone. Measuring 4.7 x 2.4 x 3.2 inches
(120 x 62 x 80mm) and weighing approximately 18 ounces (512 grams) with the
battery and card, the G2 can fit into a very large coat pocket or purse, or
it can be carried with the half-inch neck strap. For extended location shooting,
we highly recommend investing in a small, padded camera case.
The G2's slightly convex front panel houses the lens, optical viewfinder window,
built-in flash, autofocus assist light, microphone, and remote control sensor.
The 3x zoom lens telescopes about an inch from the camera body when the G2 is
powered on, and retracts when the camera is powered off. The lens is protected
by a small plastic lens cap, tethered to the camera body with an attached cord.
The microphone, which is barely visible next to the camera lens, records sound
to accompany in-camera movies. A thick, rounded hand grip on the right side
of the camera provides a more secure grip than the previous G1, giving your
fingers a larger chunk of camera to wrap around.
On the right side of the camera is a sliding chamber door that accesses the
CompactFlash slot, accommodating both Type I and II CompactFlash cards. At the
top of the right side is an eyelet for attaching one end of the neck strap.
The left side of the camera has a Manual Focus button, a speaker for playing
back recorded sound, and an A/V Out jack -- all in clear view. The USB and DC
In jacks are covered by a soft rubber flap that pulls out from the camera and
then pivots out of the way. At the top of the left panel is the other neck strap
attachment eyelet.
The G2's top panel features a small status display window; an external flash
hot shoe; a Main (lower) Power dial with three positions: Shooting (or Record),
Off, and Replay (or Playback); a Mode (upper) dial, with shooting and exposure
options; a Zoom Lever; a Shutter button; and a Continuous Drive / Self-Timer
/ Wireless Controller button. The status display panel is always appreciated,
as it reports camera settings and other miscellaneous information, without the
need for powering up the LCD monitor. Positioning the Mode dial on top of the
Main power switch is an efficient configuration that is gaining popularity among
many digicams lately. The only drawback we'd like to note is that both dials
require a two-finger grip for turning, as they are much too hard to control
with one finger or a thumb.
The majority of the exposure controls are located on the camera's back panel,
along with the optical viewfinder and LCD monitor. The G2's eye-level optical
viewfinder features a diopter adjustment switch on the left and two LEDs that
report camera status. The swiveling LCD monitor pops out of the camera back
and rotates 270 degrees when fully extended. You can fold it back into its storage
compartment with the monitor facing outward or leave it extended and turn the
screen to accommodate one of many different shooting angles. Finally, the monitor
can be turned around and popped back into the panel face-down, protecting it
from accidental scratches and fingerprints. An indented thumb grip, just to
the left of the Four Way Arrow pad, provides counter support to the large hand
grip on the front of the camera.
Other camera controls on the back panel include the Menu, Set, and Display buttons;
a Spot Metering button; dual-function buttons for Macro / Jump modes, Multi-Function
/ Erase, and Flash / Index Control; and a four-function button for controlling
Exposure Compensation / White Balance / Auto Exposure Bracketing / and Flash
Exposure compensation. This last control is by far the most complicated of the
group; however, each of its functions is related to exposure, and therefore
uses the same -2 to +2 exposure equivalent (EV) bar to make its adjustments
(with the exception of the white balance bar, which gives you a choice of eight
light-quality options). The first function, Exposure Compensation, is activated
with one press of the button; the White Balance is activated by pressing the
button twice, and so on. And like many digicam models, the dual-function buttons
perform their primary functions in Shooting mode and their secondary functions
in Replay mode.
The G2's bottom panel is reasonably flat, with a sliding door to the battery
compartment and a threaded metal tripod mount. The tripod mount is positioned
off-center (to the left of the lens), most likely to allow clearance for the
bottom of the lens mechanism. Because the battery door and tripod mount are
so close to one another, it would be difficult to make quick battery changes
while working with a tripod. However, the side-access of the DC In slot should
remedy any power concerns when shooting in the studio.
Accompanying the camera is a small infrared Remote Control with a working range of up to 16.4 feet (5 meters). By activating the Continuous / Self-Timer / Wireless Controller button in Shooting mode, you can use the Remote to fire the shutter, adjust the optical zoom, or scroll through the LCD display screens without coming in contact with the camera body. This works well with the rotating LCD monitor, because you can mount the camera on a tripod and compose the subject while standing in front of the camera. The Remote also offers several playback functions, which are useful when viewing images on a television screen. The Index display and Replay zoom buttons on the bottom of the Remote Control enable you to view up to nine thumbnail images at a time, or enlarge one captured image on the LCD monitor. The four arrow buttons on the Remote give you the same capabilities as the Four Way Arrow pad on the back of the camera, permitting you to scroll through stored images or maneuver within a larger one. Depressing the Remote's Shutter button while in Replay mode lets you play movie files on the camera's monitor or a television. We were glad to see the inclusion of this simple gadget as a standard feature, especially with the G2's video capabilities, which allow the camera to be used as a presentation tool.
Viewfinder
The G2 features both an eye-level optical viewfinder and a repositionable LCD
monitor on the back of the camera for image composition. The real-image optical
viewfinder zooms along with the lens (except in Digital Telephoto mode, which
requires the LCD monitor), and displays a set of target crosshairs in the center
of its screen. A diopter adjustment control on the left of the eyepiece adjusts
the viewfinder focus for eyeglass wearers, and two LED lights report the camera's
status during certain operations. For example, when you depress the Shutter
button halfway, a steady green light (on top) indicates that the camera is ready
to record and / or the flash charge is complete. A flashing green light indicates
that an image is either being written to, read from, or erased from the CompactFlash
card. A steady orange light (on top) indicates that the camera is ready to record
and / or the flash is adequately charged, while a flashing orange light indicates
a camera-shake warning (i.e. the shutter speed is too slow to handhold), or
the battery is charging. The lower LED light glows yellow when the camera is
set in Macro or Manual focus modes. We found the G2 to have a very high "eyepoint",
meaning there's plenty of clearance between the viewfinder and your eyeball,
allowing for even fairly thick eyeglasses.
Measuring 1.8-inches diagonally, Canon's low-temperature, polycrystalline silicon, TFT, color LCD monitor features the same smart, swiveling design we enjoyed on the G1. (And on the Pro70 before that.) The monitor's plastic casing actually pops out of the back of the camera and swings around to face forward (the same direction as the lens). From that position, the monitor can be rotated forward 180 degrees or backward 90 degrees, allowing you to hold the camera in practically any position and still see what's going on in the viewfinder. The best part of the LCD's swiveling monitor design is that it can be flipped around to face the back panel and then closed, keeping the screen safe from scratches and fingerprints.
The Display button controls the LCD monitor's image and information display.
Pressed once, it activates the LCD monitor. The second press turns on the information
display, which reports Exposure, Single or Continuous Shooting, Manual Focus,
and Flash modes (depending upon the Shooting mode you are using), as well as
Digital Zoom, when it's enabled. At the bottom of the screen are the Shutter
Speed and Aperture settings, which appear only when the Shutter button is halfway
depressed. The third press of the Display button cancels both displays.
A new function on the G2's LCD monitor is the improved manual focus utility.
Not only does the LCD now display numbers on its distance scale, it also enlarges
the center of the image, making it easier for you to accurately focus.
The G2's LCD is also used when selecting exposure compensation, white balance,
flash exposure compensation, and autoexposure bracketing options. Pressing the
middle button next to the LCD on the camera's rear panel cycles through displays
for these functions as shown above. For each parameter, you can select the desired
setting by using the left and right arrow keys on the rocker control. (A nice
touch is the way the exposure bracketing and exposure compensation adjustments
interact with each other, to show the net exposures that have been selected.)
In Replay (Playback) mode, the LCD monitor provides a full-frame display of
captured images, which you can view individually by scrolling left or right
with the arrow buttons on the Four Way Arrow pad. Depressing the Flash / Index
button brings up a thumbnail index display of nine images at a time, which you
can also scroll through with the arrow buttons. The zoom control on top of the
camera activates the G2's Digital Enlargement mode, which allows you to enlarge
an image 3x and 6x its normal size on the screen. (Another enhancement over
the G1, which has playback magnifications of only 2.5 and 5.0x.) The arrow keys
permit you to move around the image and check the fine details.
In Playback mode, one press of the Display button pulls up detailed information
about the captured image, including the file name, date, and time it was recorded,
compression, resolution, and what number it is in the sequence of captured images.
Depressing the Display button twice adds exposure information such as the Image
Zone (portrait, landscape, etc.), Shutter Speed, Aperture, Exposure Compensation,
and White Balance. Included in this extended information display is a small
histogram, which plots the tonal distribution of the image in a graph. Histograms
are useful tools for checking exposure, as they report the distribution of highlights,
shadows, and midtones. In this same display, the overexposed section of the
image flashes black and white, indicating that you need to adjust the exposure.
A third press of the Display button turns off the information display, returning
the LCD to the main image display mode.
Optics
The G2 features a built-in, 3x, 7-21mm zoom lens (equivalent to a 34-102mm lens on a 35mm camera). When the camera is powered on, the lens telescopes out from the camera body into its operating position, then retracts again when the camera is shut off. A plastic lens cap protects the lens when not in use, and features a small tether to attach it to the camera body. Focus can be automatically or manually controlled, with a range of 2.3 feet (70cm) to infinity in Normal Focus mode. Macro mode features a focus range of 2.4 inches to 2.4 feet (6 to 70cm). The aperture adjusts automatically or manually, with an f/2-f/8 range, depending on the zoom setting.
Manual focus is activated by depressing the Manual Focus (MF) button on the left side of the camera. As it's held down, a distance indicator appears on the LCD monitor, providing a reference scale for focusing. The Up and Down arrows of the Four Way Arrow pad control the focus on the monitor. The focus distance is reported in meters and feet, or centimeters and inches, depending on the range. We loved the new digital enlargement feature that assists the manual focus operation. As soon as you press the Up or Down arrows to adjust focus (while holding down the MF button), an enlarged portion of the subject appears in the center of the LCD display, making it easier to determine exact focus.
When shooting in Autofocus mode, the G2 offers both Continuous and Single Autofocus functions. In Continuous mode, the camera is constantly adjusting focus, even when the Shutter button is not depressed halfway. In Single mode, the camera focuses only when the Shutter button is depressed halfway, which helps to conserve battery power. A Pan focus mode is also provided as a preset exposure on the Mode dial. It fixes the lens at the widest possible angle, allowing you to photograph at any distance (25.6 inches or 65cm to infinity), without having to refocus on close-up or faraway subjects. This mode is great for fast-paced action, when subjects are in constant motion.
New to the G2 is the ability to select one of three main focus areas. Pressing the Set button while in Program, Aperture-Priority, Shutter-Priority, or Manual Exposure modes displays three outline squares across the center of the LCD monitor. The Right and Left arrow keys allow you to select one of the three boxes, which when highlighted, turn from a white outline to green. The green box then becomes the primary focus area. Press the Set button again to eliminate the two boxes that are not highlighted, and the square turns white again. Once the focus point is set and the picture is framed, pressing the Shutter button halfway will turn the box green if the selected area is in focus and yellow if it's not. Through the Record menu, you can apply this same point selection option to the Spot Metering mode using the Spot AE Point submenu.
Digital Zoom is activated through the camera's Record menu and is controlled with the same controls as the optical zoom. The amount of zoom is reported in the top right corner of the LCD monitor, and can go as high as 3.6x depending on the image pixel size. Digital Zoom is not available when shooting with the G2's Movie mode, or when using the RAW file format. (It's important to note that digital zoom simply enlarges the center of the CCD image, resulting in some loss of image quality in the form of increased noise or reduced image sharpness.) The G2's digital zoom operates differently than that on the G1, and indeed, differently than that on most Canon digicams. The G1 and most other Canon digicams have a "digital telextender" function, in which the digital zoom kicks in in increments of 2x. (That is, it goes directly from no digital zoom to 2x digital zoom, with no fractional magnification values in between.) In contrast, the G2's digital zoom operates smoothly, producing a continuous zoom range up to 11x, working in cooperation with the 3x optical zoom lens.
Like the G1, the G2 accommodates several optional lens converters with a lens adapter kit, so you can extend your camera's telephoto capabilities with high-quality optics instead of software interpolation. Options include a wide-angle WC-DC58 conversion lens, which augments the lens focal length by a factor of 0.8; a teleconverter TC-DC58, which increases the lens' focal length by a factor of 1.5; and a close-up lens 250D, which brings the camera's focusing range down to 4.7-7.9 inches (12-20cm) in Macro mode. A small ring around the outside of the lens unscrews, revealing a threaded mount for the adapter kit.
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The G2's Wireless Remote Control allows you to trigger a two-second self-timer countdown from as far away as 16.4 feet (5 meters) in front of the camera. It can also be used to adjust the optical zoom lens with its two Zoom buttons, and activate the LCD monitor with its Display button. By rotating the LCD monitor so that it faces you (or the subject), you can use the Zoom buttons to compose the image and the Display button to scroll through the G2's LCD information screen to check exposure settings. In Replay mode, the remote control can be used to scroll through stored images, scroll around areas within a magnified image, view an index of up to nine captures, and replay movies.
Shutter Lag/Cycle Times
When you press the shutter release on a digital camera, there's usually a lag
time before the shutter actually fires. This time allows the autofocus and autoexposure
mechanisms to do their work and can amount to a significant delay in some situations.
Since this number is rarely reported by manufacturers or reviewers, and can
significantly affect the picture-taking experience, Imaging Resource
now measures shutter lag and cycle times using a proprietary electronic test
setup.
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Power On -> First shot |
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Time from power-up to first shot. Somewhat slower than
average.
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Shutdown |
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Time for lens to retract
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Play to Record, first shot |
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Time until first shot is captured. Somewhat slower
than average.
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Record to play (max/min res) |
2.3/1.3 |
Top times are for max res JPEGs, bottom times for min
res. First time in each pair is for immediate switch to play mode after
shutter release, second time is for switch after camera has processed
the last frame and saved to memory.
|
Shutter lag, full autofocus |
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Longer time is for telephoto, shorter for wide angle. Both figures are a bit slower than average. |
Shutter lag, manual focus |
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A bit slower than average. |
Shutter lag, prefocus |
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MUCH faster than average. (Good for sports?)
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Cycle Time, max/min resolution |
2.1 3.7 |
First number is for large/fine files, second
for small/economy. Last time is for full res CCD RAW files. (Delay of
5.0 seconds between second and third RAW shots though.) Overall, quite
fast. (NOTE - These times are slower than Canon's specs for this camera, we'll re-test when we receive our production unit.) |
Cycle time, continuous mode |
2.46/2.68 fps |
Quite fast. First set of numbers are for max/min res in "normal" continuous mode, second set are the same for "high speed" continuous mode. |
Overall, the PowerShot G2 is a just a shade slower than many of its contemporaries. It starts up and shuts down a bit slower, and the more critical shutter lag and cycle time numbers are a bit off those of its fastest competitors. Where it really shines though, is in the prefocus shutter delay, which is less than a tenth of a second, blazingly fast by any standard. - Despite its slower than average autofocus speed, the ultrafast prefocus shutter lag could make the G2 a contender for some sports shooting. (Provided that it was such that you could prefocus and let the action come to you.) Not bad overall though, particularly for a four megapixel camera. The 2.3 second cycle time for maximum resolution & quality is very competitive.
Operation and User Interface
Like its predecessor, the G1, the Canon G2's combination of control buttons and dials may seem a little complicated at first glance, but once we became familiar with the features, we actually found the user interface to be very intuitive. We generally prefer to change as many exposure settings as possible without resorting to the LCD menu, and the G2 provides a fair amount of external control. The camera controls are somewhat spread out, but it's possible to operate the camera one-handed and still access the majority of the buttons (we wouldn't recommend it unless you're working at fast shutter speeds or with a flash). We appreciated the small status display panel on top of the camera, which allows you to check current camera settings without having to activate the LCD monitor (a nice battery conservation feature). We also enjoyed shooting with the rotating LCD screen, which made composing shots from odd angles a lot easier to manage. The ability to flip the monitor all the way around to face the back panel was great for keeping fingerprints and smudges off of the screen when handling the camera.
The new, larger hand grip was a real bonus, as it provided a much firmer hold on the camera. The only control features we had a hard time operating were the Main Power and Mode dials, which were difficult to turn with just one finger or thumb (especially one-handed). We found the force required to turn the Main dial from the Shooting mode to the Off position frequently pushed it beyond the target setting and on to the Replay mode. A two-finger approach worked much better. Take note that when using the Mode dial, the settings align with a very small and inconspicuous marker jutting from the base of the flash hot shoe mount (on the left side of the dial), which is easy to miss if you're not paying attention.
Control Enumeration
Zoom Toggle: Encircling the Shutter button on top of the camera is a toggle switch that controls the optical zoom in any Record mode. Pushing it to the left gives you the wide-angle setting and pushing it to the right zooms into telephoto.
In Replay mode, this toggle switch controls the digital enlargement, allowing you to enlarge captured images as much as 5x to examine fine details.
Shutter Button: In the center of the Zoom toggle switch is the Shutter button. When halfway depressed, it sets focus and exposure; when fully depressed, it trips the shutter release. In the Self-Timer / Wireless mode (see below), fully depressing the Shutter button triggers a 12-second countdown before the shutter is released. Holding the button down after an exposure displays the captured image on the LCD monitor for as long as you hold it down. You can also program the camera to provide an automatic 2- or 10-second display of the captured image by setting the Review value in the Record menu.
Continuous / Self-Timer / Wireless Controller Button: Located just behind the Shutter button and Zoom toggle switch, this button cycles between the Continuous Shooting, Self-Timer / Wireless Control, and Single frame recording modes.
Mode Dial: To the left of the Continuous / Self-Timer button, and sitting on top of the camera's power control, this notched dial is used to select the camera's shooting modes. Canon divides these functions into two categories: Image Zone and Creative Zone. Their options are as follows:
Creative Zone
Image Zone
Main / Power Dial: Located directly beneath the Exposure Mode dial, this larger notched dial controls the camera's operating mode. The following options are available:
Four Way Arrow Pad: Positioned in the top right corner of the back panel, this rocker pad features four arrows, one in each direction (up, down, left, right). In any settings menu, these arrows navigate through menu options. In shooting modes, the Left and Right arrows work in conjunction with several exposure controls to adjust settings. When Manual Focus is enabled, the Up and Down Arrows manually adjust focus. In Manual exposure mode, the Left and Right Arrows set the shutter speed, while the Up and Down Arrows set the lens aperture. In Aperture and Shutter-Speed priority modes, the Left and Right Arrows adjust the designated exposure variable. When using the four-function Exposure Compensation button, the arrows help you select the exposure variation in the three Exposure Compensation functions, and scrolls through the eight available White Balance settings.
In Replay mode, the Right and Left Arrows scroll through captured images. When the playback zoom feature is enabled, all four arrows allow you to move around within the enlarged image to examine fine details.
Menu Button: Just beneath the Four Way Arrow pad is the Menu button, which calls up the settings menus on the LCD display in all camera modes. A second press of the Menu button cancels the menu display.
Set Button: To the left of the Menu button, this button confirms or sets any on-screen menu selections. Pressing this button outside of a settings menu in Record mode allows you to set the focus / spot metering area, either in the center of the image, or to the left or right.
In Replay mode, it sets menu options and plays back movie files.
* Button: Located to the right of the LCD monitor, this button serves as the Auto Exposure (AE) and Flash Exposure (FE) Lock button in Record mode.
When the Quick Review mode is active or in Replay mode, pressing this button pulls up an erase menu for erasing the displayed image.
Exposure Compensation Button: Immediately below the * button, this four-function button scrolls through four shooting adjustments: Exposure Compensation, White Balance, Flash Exposure Compensation, and Auto Exposure Bracketing. When set on Exposure Compensation (press the button one time), you can use the right and left arrow buttons to control the exposure compensation from -2 to +2 EV in one-third-step increments. The White Balance setting (press two times) lets you choose the White Balance value from Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Flash, and Custom options. Flash Exposure Compensation (press three times) works similarly to the standard Exposure Compensation function, by adjusting the flash intensity from -2 to +2 EV in one-third-step increments. Finally, the Auto Exposure Bracketing mode allows you to take a series of three images at different exposure variations.
Display Button: Just below the Exposure Compensation button, the Display button controls the LCD monitor's display mode. In Record mode, this button turns on the image display with the first press, activates the information display with the second press, and cancels both with the third press.
In Replay mode, the button cycles through the captured image information displays, including a detailed information display with a histogram.
Macro / Jump Button: Located over the top right corner of the LCD monitor, this button accesses the Macro function when the camera is in Record mode.
In Replay mode, it pulls up the "jump bar." When the jump bar is displayed, the right and left arrow buttons jump either nine images forward or nine images backward.
Metering Button: To the left of the Macro / Jump button, this control places the camera in either Spot or Center-Weighted Averaging metering modes when the camera is in Record mode.
Diopter Adjustment Lever: Located on the left side of the optical viewfinder eyepiece, in a recessed niche, this lever adjusts the optical viewfinder's focus to accommodate eyeglass wearers.
Flash / Index Display Button: Positioned in the very top left corner of the back panel, this button cycles through the Automatic, Red-Eye Reduction (Auto), Red-Eye Reduction (Flash On), Flash On, and Flash Off internal flash modes.
In Replay mode, this button displays up to nine images at a time, in a thumbnail index format, on the LCD screen.
Manual Focus Button (MF): Located on the speaker side of the camera (closest to the lens), this button puts the camera into Manual Focus mode, or returns it to Autofocus, when in Record mode.
Battery Cover Lock: This sliding latch is located on the bottom panel of the camera, next to the battery compartment door. Sliding the switch locks and unlocks the battery compartment.
Camera Modes and Menus
The G2 has two Mode Dials on the camera's top panel. The top dial controls the Shooting modes, with five Creative Zone options -- Auto, Program AE, Shutter Priority, Aperture Priority, and Manual -- and six Image Zone options -- Pan Focus, Portrait, Landscape, Night Scene, Color, Stitch-Assist, and Movie (see descriptions under "Control Enumerations"). The bottom dial serves as the main power switch, with Shooting, Off, and Replay options. The Record menu is available in all Shooting modes, with variations in submenus depending on the exposure options. The Setup menu is accessed in either Shooting or Playback modes. The Play menu is available only in Replay mode.
Record Menu (Red): With the exception of the Auto exposure mode and most of the Image Zone exposure functions, the Record menu provides virtually the same options for all exposure modes. These menus are accessed by depressing the Menu button once while in a Shooting mode. Following are the available settings:
Setup Menu (Yellow): The Setup menu provides universal camera control options that remain the same in both Shooting and Replay modes, with the exception of shutter and speaker volume (see below). This menu is accessed by depressing the Menu button once and scrolling to the right with the Right Arrow button. Following are the available settings:
Play Menu (Blue): This menu is only available in the Replay mode. It allows you to scroll through captured images; erase, protect, and rotate them; or set them up in a slide show or for printing on a DPOF compatible device. The Play menu offers the following selections:
Image
Storage and Interface
The G2 uses CompactFlash memory cards for image storage, accommodating both
Type I and II card sizes. This means that the camera is also able to store images
to an IBM MicroDrive for increased storage capacity. A 32MB CompactFlash Type
I memory card is supplied with the camera. Entire CompactFlash cards cannot
be write-protected, however, the G2's Play menu allows you to write-protect
individual image files, protecting them from accidental erasure, unless the
card is formatted.
Still images can be saved at one of four resolutions (2,272 x 1,704, 1,600 x
1,200, 1,024 x 768, or 640 x 480 pixels), while movies are recorded at either
320 x 240 or 160 x 120 pixels. Still images also have three JPEG compression
levels available: Superfine, Fine, and Normal, plus a RAW setting that records
the image straight from the CCD, without any processing. The benefit of the
RAW data file format is that it compresses the image file without any loss in
image quality (the compression can be reversed) and the color isn't adjusted
to match any particular file format, such as RGB TIFF. All of the image color
parameters are kept in their original state. (RAW images require the use of the Canon
software for processing on a computer.)
A full complement of interface software comes with the G2, as does a USB cable
for speedy connection to a PC or Macintosh computer. The G2 connects as a "storage class" device, although drivers need to be loaded for both Mac and Windows, apparently to distinguish between the camera's remote capture and disk drive modes. The G2 downloads images quite quickly, as we clocked it at a transfer rate of 435 KBytes/second when connected to our Mac G4.
Following are the approximate resolution / quality and compression ratios for
a 32MB card (compression numbers are based on our own computations):
Resolution/Quality |
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2272 x 1704 | Images | 14 | 26 |
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Approx. Compression |
5:1 | 9:1 |
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1600 x 1200 | Images |
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Approx. Compression |
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Images |
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Approx. Compression |
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Images |
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Approx. Compression |
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One
of the first things any new digicam owner will need is a larger memory card
for their camera: The cards shipped with the units by the manufacturers should
really be considered only "starter" cards, you'll definitely want a higher capacity
card immediately. - Probably at least a 32 megabyte card for a 1.3 or 2 megapixel
camera, 64 megabytes or more for a 3, 4, or 5 megapixel one. (The nice thing
about memory cards is you'll be able to use whatever you buy now with your next
camera too, whenever you upgrade.) To help you shop for a good deal on memory
cards that fit the G2, we've put together a little memory locater, with links
to our price-comparison engine: Just click on the "Memory Wizard" button above
to go to the Canon memory finder, select your camera model , and click the shopping
cart icon next to the card size you're interested in. You'll see a list of matching
entries from the price-comparison database. Pick a vendor & order away! (Pretty
cool, huh?)
Lost Images? - Download this image-recovery program so you'll have it when
you need it...
Since we're talking about memory and image storage, this would be a good time
to mention the following: I get a ton of email from readers who've lost photos
due to a corrupted memory card. It's tragic when it happens, there are few things
more precious than photo memories. Corrupted memory cards can happen with any
card type and any camera manufacturer, nobody's immune. "Stuff happens,"
as they say. A surprising number of "lost" images can be recovered
with an inexpensive, easy to use piece of software though. Given the amount
of email I've gotten on the topic, I now include this paragraph in all my digicam
reviews. The program you need is called PhotoRescue, by DataRescue SA. Read
our review of it if you'd like, but download the program now,
so you'll have it. It doesn't cost a penny until you need it, and even then
it's only $29, with a money back guarantee. So download PhotoRescue for
Windows or PhotoRescue for
Mac while you're thinking of it. (While you're at it, download the PDF
manual and quickstart
guide as well.) Stash the file in a safe place and it'll be there when you need
it. Trust me, needing this is not a matter of if, but when... PhotoRescue
is about the best and easiest tool for recovering digital photos I've seen.
(Disclosure: IR gets a small commission from sales of the product, but I'd highly
recommend the program even if we didn't.) OK, now back to our regularly
scheduled review...
Video
Out
The G2 has a video-out port with a choice of NTSC timing format, for US and
Japanese model televisions, and PAL timing format for European televisions,
which are selectable through the Play menu. The video output can be used for
reviewing previously recorded images or running slide shows from the camera.
It also shows all three LCD menu screens, as well as the preview display from
the LCD viewfinder. Combined with the very flexible controls of the wireless
remote transmitter, the live video output display opens up interesting possibilities
for portrait photography, such as using a video monitor as a remote viewfinder.
The output cable is a true AV cable, as it fans out into two RCA jacks, one
for video, and one for audio. Plugged into any video monitor (or TV with direct
video and audio inputs), the audio capabilities of the G2, combined with the
wireless remote control, should make it an effective portable presentation device.
Power
The G2 is powered by an internal BP-511 rechargeable lithium-ion battery pack,
a LiIon design that packs quite a wallop (meaning long run times). The camera
ships with one battery pack, as well as an AC adapter that doubles as an in-camera
charger. A standalone charger is sold separately, as is a car AC adapter that
plugs into any automobile cigarette lighter. A CR2016 lithium battery keeps
the G2's internal clock going, and fits into a small compartment within the
battery chamber.
Because the G2 relies on its LCD display for viewing and selecting some of its
settings, it can be somewhat of a drain on the power supply. Fortunately, the
camera has an automatic three-minute shutdown mode to help conserve battery
power, and you can control power consumption by reducing the amount of information
displayed on the LCD monitor, and keeping the autofocus mechanism in Single
mode rather than Continuous mode.
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(mA @9.5v) |
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Capture Mode, w/LCD |
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Capture Mode, no LCD |
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Half-pressed shutter w/LCD |
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Half-pressed w/o LCD |
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Memory Write (transient) |
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Flash Recharge (transient) |
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Image Playback |
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The RemoteCapture functionality has been enhanced on the G2 over what was provided for the G1. Formerly, the camera's video out didn't function when RemoteCapture was active. On the G2, the video remains "live", letting you use the video output for a remote viewfinder display in studio setups. Another change on the G2 is that the shutter button on the camera now remains active. On the G1, you could only trip the shutter via the computer when in RemoteCapture mode.
The G2 also supports a "RAW" file format, in which the data is taken
straight from the CCD with no processing inside the camera. These RAW files
can subsequently be processed on a personal computer using Canon's ZoomBrowser
software, which lets you adjust white balance, brightness, color saturation,
and sharpness post-exposure. Because RAW files are completely lossless, they
contain all the information captured by the CCD. Any modifications or tweaks
you make on these files with ZoomBrowser begin with the full 10-bit data that
the camera captured. This means that fewer image artifacts will result from
your adjustments. (As noted above, Mac users can access the RAW files via a
Photoshop-compatible plugin.)
We confess to being confused over the G2's USB "class" designation:
We'd thought that "storage-class" meant that no driver software would
be required to connect the camera to Mac OS 9 or greater, or Windows Me. Apparently
this isn't the case though, because Canon describes the G2 as a storage-class
device, even though driver software is required. Regardless, with the appropriate
driver software (USB WIA driver in Windows, USB Mounter in Mac 9.0-9.1), the
G2 will in fact appear on your desktop as another disk drive.
In the Box
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Included in the box with the PowerShot G2 are the following items:
Test Results
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<<PowerShot G2 Sample Images | Additional Resources and Other Links>>
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