Pentax K-x Feature Comparison
The chart below compares the K-x with its bigger brother, the K-7, as well as its predecessor, the K2000. What we've done below is presented something of a hybrid comparison between these three models. A red cell means that a given camera performs below the other two, a green cell means that it performs better than the other two, and a yellow cell means it falls between the other two. In cases where two cameras share a superior capability, both cells will be colored green.
| Pentax K-x vs other Pentax SLRs | ||||
|
Manufacturer
|
Pentax
|
Pentax
|
Pentax
|
|
|
Model
|
K-7
|
K-x
|
K2000 / K-m
|
|
| Imaging System |
Sensor Manufacturer
|
Samsung
|
Sony
|
Sony
|
|
Sensor Type
|
CMOS
|
CMOS
|
CCD
|
|
|
Color Filter Array
|
RGB
|
RGB
|
RGB
|
|
|
Total Megapixels
|
15.07
|
12.9
|
10.75
|
|
|
Effective Megapixels
|
14.6
|
12.4
|
10.2
|
|
|
Effective Sensor Size (mm)
|
23.4 x 15.6
|
23.6 x 15.8
|
23.5 x 15.7
|
|
|
Focal Length Multiplier (approx.)
|
1.5x
|
1.5x
|
1.5x
|
|
|
Image Processor
|
PRIME II
|
PRIME II
|
PRIME
|
|
| Viewfinder |
Type
|
Eye-level
pentaprism |
Eye-level
pentamirror |
Eye-level
pentamirror |
|
Coverage
|
100%
|
96%
|
96%
|
|
|
Magnification (-1 diopter with 50mm lens at infinity)
|
0.92x
|
0.85x
|
0.85x
|
|
|
Eyepoint (mm)
|
?
|
?
|
?
|
|
|
Dioptric Adjustment Range (diopters)
|
-2.5 to +1.5
|
-2.5 to +1.5
|
-2.5 to +1.5
|
|
|
Focusing Screen
|
Natural-Bright-Matte III focusing screen; interchangeable
|
Natural-Bright-Matte II focusing screen; interchangeable
|
Natural-Bright-Matte II focusing screen; interchangeable?
|
|
|
Viewfinder
Info Display |
AF frames, AF points, spot metering area, anti-shake indicator, flash status, shutter speed, aperture, focus indicator, manual focus indicator, AF point move indicator, EV bar, EV compensation indicator, bracketing indicator, flash exposure compensation indicator, AE lock, Auto ISO, available images, ISO sensitivity, EV compensation value, metering mode, multiple exposure, file format
|
AF frames, spot metering area, anti-shake indicator, flash status, shutter speed, aperture, focus indicator, manual focus indicator, EV compensation indicator, AE lock, available images, ISO sensitivity, EV compensation value, picture mode
|
AF frames, spot metering area, anti-shake indicator, flash status, shutter speed, aperture, focus indicator, manual focus indicator, EV compensation indicator, AE lock, available images, ISO sensitivity, EV compensation value, picture mode
|
|
|
Depth of Field Preview
|
Optical & Digital: enabled with depth-of-field preview position on power dial
|
Optical & Digital: enabled with depth-of-field preview assigned to Green button
|
Digital Only: Can be assigned to Help button
|
|
| Recording System |
Recording Media / Quantity / Slot Type
|
Secure Digital card
(SDHC compatible) |
Secure Digital card
(SDHC compatible) |
Secure Digital card
(SDHC compatible) |
|
Compatible File System
|
FAT 16 / FAT 32
|
FAT 16 / FAT 32
|
FAT 16 / FAT 32
|
|
|
Recording Formats
|
RAW (PEF or DNG), JPEG
|
RAW (PEF or DNG), JPEG
|
RAW (PEF or DNG), JPEG
|
|
|
Maximum Resolution
|
4672 x 3104
|
4288 x 2848
|
3872 x 2592
|
|
|
Reduced Resolutions (JPEG only)
|
3936 x 2624
3072 x 2048 1728 x 1152 |
3936 x 2624
3072 x 2048 1728 x 1152 |
3008 x 2000
1824 x 1216 |
|
|
RAW + JPEG Recording
|
Yes
|
Yes
|
Yes
|
|
| Color
Space & White Balance |
User-Selectable Color Space
|
Yes
sRGB + Adobe RGB |
Yes
sRGB + Adobe RGB |
Yes
sRGB + Adobe RGB |
|
Processing Parameters
(Contrast, Sharpness, Saturation, Color Tone) / # of Increments |
4 steps each for saturation, hue/toning, high/low key, contrast, and sharpness; 8 for brightness
Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Muted, Monochrome |
±4 steps each for saturation, hue/toning, high/low key, contrast, and sharpness; plus 9 Filter Effects
Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Muted, Monochrome |
4 steps each for saturation, hue/toning, contrast, and sharpness
Custom Image: Bright, Natural, Portrait, Landscape, Vibrant, Monochrome |
|
|
WB settings
|
15 (Daylight, Shade, Cloudy, Fluorescent (D, N, W, L), Tungsten, Flash, Color Temperature (3 setting), CTE, Manual, Auto)
|
12 (Daylight, Shade, Cloudy, Fluorescent (W, D, N, L), Tungsten, Flash, CTE, Manual, Auto)
|
8 (Daylight, Shade, Cloudy, Tungsten light, Fluorescent light, Flash, Manual, Auto)
|
|
|
Manual Color Temperature Setting Range
|
Yes, 2,000-12,000K in 20 mired or 100K steps
|
Not available
|
Not available
|
|
|
WB Adjustment Range
|
7 steps Blue to Amber and 7 steps Magenta to Green, in 1-step increments
|
7 steps Blue to Amber and 7 steps Magenta to Green, in 1-step increments
|
7 steps Blue to Amber and 7 steps Magenta to Green, in 1-step increments
|
|
| Autofocus System |
Type
|
TTL phase detection by SAFOX VIII+ autofocus module
|
TTL phase detection by SAFOX VIII autofocus module
|
TTL phase detection by SAFOX autofocus module
|
|
# of Focusing Points (Focusing Point Type)
|
11 points, (9 cross-type, 2 single-axis)
|
11 points, (9 cross-type, 2 single-axis)
|
5 points, (1 cross-type, 4 single-axis)
|
|
|
Superimposed
Focus Point Display
|
Yes
|
No
|
No
|
|
|
AF Working Range
|
EV -1 ~ 18 (ISO 100)
|
EV -1 ~ 18 (ISO 100)
|
EV -1 ~ 18 (ISO 100)
|
|
|
AF-assist Beam
|
Yes, dedicated AFAssist lamp
|
Yes, stroboscopic flash. Only available when flash is enabled.
|
Yes, stroboscopic flash. Only available when flash is enabled.
|
|
|
One-shot AF
|
Available in
Single Shot AF mode |
Available in
Single Shot AF mode |
Available in
Single Shot AF mode |
|
|
AI Servo (Tracking) AF
|
Available in Continuous AF Mode
|
Available in Continuous AF Mode
|
Available in Continuous AF Mode
|
|
|
AI Focus AF
|
Predictive focus control (with moving subjects in Continuous AF modes)
|
Predictive focus control (with moving subjects in Continuous AF modes)
|
Predictive focus control (with moving subjects in Continuous AF modes)
|
|
| Exposure Control |
Shooting Modes
|
11 - Auto, Program, Shutter Priority, Sensitivity Priority, Aperture Priority, Shutter & Aperture Priority, Manual, Bulb, Flash (X), User, Movie
|
25 - Auto Picture, Portrait, Landscape, Macro, Moving Object, Night Scene Portrait, Flash Off, Blue Sky, Scene (Night Scene, Surf & Snow, Food, Sunset, Stage Lighting, Kids, Pet, Candlelight, Museum, Night Snap), Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Manual, Bulb, Movie
|
24 - Auto Picture, Picture (Portrait, Landscape, Macro, Action, Night Scene Portrait, Standard Flash Off), Scene (Night Scene, Surf & Snow, Food, Sunset, Kids, Pet, Candlelight, Museum, Stage Lighting [2M JPG], Night Snap [2M JPG]), Program, Sensitivity Priority, Shutter Priority, Aperture Priority, Manual, Bulb
|
|
Metering Zones
|
77
|
16
|
16
|
|
|
Metering Modes
|
Multi-segment,
center-weighted, spot |
Multi-segment,
center-weighted, spot |
Multi-segment,
center-weighted, spot |
|
|
Metering System Working Range
|
EV 0 ~ 21
(ISO 100, f/1.4 lens) |
EV 1 ~ 21.5
(ISO 200, f/1.4 lens) |
EV 0 ~ 21
(ISO 100, f/1.4 lens) |
|
|
ISO Range / Extended
|
100 ~ 3200 / 6400
|
100 / 200 ~ 6400 / 12800
|
100 ~ 3200
|
|
|
Exposure Compensation
|
+/- 5 EV
in 1/2 EV or 1/3 EV increments |
+/- 3 EV
in 1/2 EV or 1/3 EV increments |
+/- 3 EV
in 1/2 EV increments +/- 2 EV in 1/3 EV increments |
|
|
Automatic Exposure Bracketing
|
3 or 5 shots, +/-2.0 EV (in 1/2 or 1/3 EV steps)
|
3 shots, (in 1/2 or 1/3 EV steps)
|
3 shots, (in 1/2 or 1/3 EV steps)
|
|
|
Extended Bracket
|
Yes,
White Balance, Saturation, Hue, High/Low Key Adj, Contrast, Sharpness |
Not Available
|
Not Available
|
|
|
Expanded
D-Range |
Yes,
Highlight Correction: On, Off, Shadow: High, Medium, Low, Off |
Yes,
Highlight Correction: On, Off, Shadow: High, Medium, Low, Off |
Yes,
On, Off |
|
|
HDRCapture
|
Yes,
Standard, Strong |
Yes,
Standard, Strong |
Not Available
|
|
|
Digital Filters
|
Yes,
8 preset, plus 1 custom |
Yes,
15 preset, plus 1 custom |
Yes,
12 preset, plus 1 custom |
|
| Shutter
Speeds, Frame Rate, Shutter Lag |
Shutter Type
|
Electronically controlled vertical-run focal plane shutter
|
Electronically controlled vertical-run focal plane shutter
|
Electronically controlled vertical-run focal plane shutter
|
|
Shutter Speed Range
|
1/8000 ~ 30 sec.,
bulb |
1/6000 ~ 30 sec.,
bulb |
1/4000 ~ 30 sec.,
bulb |
|
|
Maximum Frames Per Second / Buffer depth
|
5.21 fps /
20 large/superfine JPEG frames |
4.32 fps /
25 large/superfine JPEG frames |
2.92 fps /
6 large/superfine JPEG frames |
|
|
Shutter lag, full AF (sec.)
|
0.093
|
0.097
|
0.125
|
|
|
Shutter lag, prefocus (sec.)
|
0.074
|
0.082
|
0.105
|
|
|
Startup time (sec.)
|
0.6
|
0.6
|
0.4
|
|
| Flash |
Built-in Flash / Guide Number at ISO 100.
|
Yes (13 meters / 43 feet)
|
Yes (11 meters / 36 feet)
|
Yes (11 meters / 36 feet)
|
|
Max flash x-sync speed. (sec.)
|
1/180
|
1/180
|
1/180
|
|
|
Flash Exposure Compensation
|
-2 to +1 EV, 1/2 or 1/3 EV steps
|
-2 to +1 EV, 1/2 or 1/3 EV steps
|
-2 to +1 EV, 1/2 or 1/3 EV steps
|
|
|
Slow-sync Flash
|
Yes
|
Yes
|
Yes
|
|
|
Wireless Support
|
Yes
|
Yes
|
Yes
|
|
|
PC Sync Terminal
|
Yes
|
Hot shoe only
|
Hot shoe only
|
|
| Playback System |
LCD Size / Pixel Count
|
3.0 in LCD / 921,600 dots
|
2.7 in LCD / 230,600 dots
|
2.7 in LCD / 230,600 dots
|
|
Enlarged Playback / Scroll
|
1.2 - 32x / Yes
|
1.2 - 16x / Yes
|
1.2 - 16x / Yes
|
|
|
LCD Monitor Brightness Adjustment Range
|
15 steps
|
15 steps
|
15 steps
|
|
|
LCD Monitor Color Adjustment Range
|
225 steps
(15 steps each on G-M and B-A axis) |
225 steps
(15 steps each on G-M and B-A axis) |
225 steps
(15 steps each on G-M and B-A axis) |
|
|
Automatic Rotation for Vertical Shots
|
Yes
|
Yes
|
No ?
|
|
| Other Features |
Computer Connection
|
USB 2.0 High-Speed, PTP-compliant
|
USB 2.0 High-Speed, PTP-compliant
|
USB 2.0 High-Speed, PTP-compliant
|
|
Direct Printing (PictBridge-compliant printers)
|
No
|
No
|
Yes
|
|
|
Menu Languages
|
20 (English, French, German, Spanish, Portuguese, Italian, Dutch, Danish, Swedish, Finnish, Polish, Czech, Hungarian, Turkish, Greek, Russian, Korean, Traditional/Simplified Chinese, Japanese)
|
20 (English, French, German, Spanish, Portuguese, Italian, Dutch, Danish, Swedish, Finnish, Polish, Czech, Hungarian, Turkish, Greek, Russian, Korean, Traditional/Simplified Chinese, Japanese)
|
20 (English, French, German, Spanish, Portuguese, Italian, Dutch, Danish, Swedish, Finnish, Polish, Czech, Hungarian, Turkish, Greek, Russian, Korean, Traditional/Simplified Chinese, Japanese)
|
|
|
Camera Default Reset
|
Yes
|
Yes
|
Yes
|
|
|
Custom Functions (Quantity)
|
Yes (37)
|
Yes (22)
|
Yes (21)
|
|
|
Remote Control
|
Optional wireless
or wired |
Optional wireless
|
Optional wireless
|
|
|
Info LCD Panel / Illumination
|
Yes / Yes
|
No / N/A
|
No / N/A
|
|
|
Eye-start AF
|
Not Available
|
Not Available
|
Not Available
|
|
|
Ultrasonic CCD dust-removal function
|
Yes
|
Yes
|
Yes
|
|
|
Anti-Shake
(CCD shift) |
Yes, improved
|
Yes
|
Yes
|
|
|
Live View
|
Yes
|
Yes
|
Not Available
|
|
|
Live View Focusing
|
Phase-detect, Contrast-detect, Face-Detect, Manual
|
Phase-detect, Contrast-detect, Face-Detect, Manual
|
N/A
|
|
|
Multiple Exposure
|
Yes (2-9 shots)
|
Yes (2-9 shots)
|
Not Available
|
|
|
Time-Lapse
|
Yes (up to 99 shots)
|
Not Available
|
Not Available
|
|
|
Electronic Level
|
Yes
|
Not Available
|
Not Available
|
|
|
Composition Adjust
|
Yes
|
Not Available
|
Not Available
|
|
|
Movie Recording
|
Yes,
1536 x 1024 @ 30fps 1280 x 720 @ 30fps 640 x 417 @ 30fps |
Yes,
1280 x 720 @ 24fps 640 x 417 @ 24fps |
Not Available
|
|
|
External Mic Jack
|
Yes,
stereo |
Not Available
|
Not Available
|
|
|
HDMI Output
|
Yes
|
Not Available
|
Not Available
|
|
| Body Structure |
Body Cover/Chassis
|
Magnesium Alloy / Stainless Steel Chassis
|
Plastic / Stainless Steel Chassis
|
Plastic / Stainless Steel Chassis
|
|
Dust and Weather Resistant
|
Yes
|
No
|
No
|
|
| Power System |
Battery Compatibility
|
D-LI90 Lithium-ion
Optional battery grip D-BG4 |
4 x AA
(Lithium, Alkaline, NiMH) |
4 x AA
(Lithium, Alkaline, NiMH) |
|
Rated Shooting Capacity at 20C/68F
|
CIPA standard:
740 |
CIPA standard:
420 (1900mAh NiMH) |
CIPA standard:
640 (2700mAh NiMH) |
|
| Dimensions & Weight |
Dimensions (WxHxD, mm)
|
130.5 x 96.5 x 72.5
|
122.5 x 91.5 x 67.5
|
122.5 x 91.5 x 67.5
|
|
Weight (body only)
|
670 g / 22.9 oz.
|
515 g / 18.2 oz.
|
525 g / 18.5 oz.
|
|
| Operational Environment |
Operating Temperature Range
|
-10 ~ 40C / 14 ~ 104F
|
0 ~ 40C / 32 ~ 104F
|
0 ~ 40C / 32 ~ 104F
|
|
Operating Humidity Range
|
Not stated
|
Not stated
|
Not stated
|
|
| Kit Lens |
Focal length/aperture
|
N/A
|
18-55mm
f/3.5-5.6 DA-L |
18-55mm |
| Lens Compatibility |
Lens Mount / Compatibility
|
Pentax KAF2 mount compatible with Pentax KAF3, KAF2, KAF, and KA (K mount, 35mm screwmount, 645/67 med format lenses usable w/ adapter and/or restrictions); SDM function - Yes; Power zoom function: Yes
|
Pentax KAF mount compatible with Pentax KAF3, KAF2, KAF, and KA (K mount, 35mm screwmount, 645/67 med format lenses usable w/ adapter and/or restrictions); SDM function - Yes; Power zoom function - No
|
Pentax KAF mount compatible with Pentax KAF3, KAF2, KAF, and KA (K mount, 35mm screwmount, 645/67 med format lenses usable w/ adapter and/or restrictions); SDM function - Yes; Power zoom function - No
|
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