• 1/2.35 inch 27.3mm2
  • 8.0 megapixels
  • 36.00mm - 180.00mm (35mm eq.)
  • 1/2.3 inch 28.1mm2
  • 16.0 megapixels
  • 28.00mm - 140.00mm (35mm eq.)
  • Detailed specifications
  • Olympus Stylus 840
  • Canon PowerShot A810
Links
Prices:    
Manufacturer URL: Manufacturer website Manufacturer website
Predecessor:    
Successor:    
General
Model Number: 840 A810
Alternate Model Number(s):    
Camera Format: Compact Compact
Currently Manufactured: No No
Retail Price: $249.99 $109.99
Street Price: $173.11  
Date Available: 2008-01-31 2012-04-15
Tripod Mount: No Yes
Weight: 4.6 oz (130 g) 6.0 oz (171 g)
includes batteries
Size: 3.8 x 2.2 x 0.9 in.
(96 x 57 x 24 mm) 		3.7 x 2.4 x 1.2 in.
(95 x 61 x 30 mm)
Waterproof: No No
Waterproof Depth: n/a n/a
Image Sensor
Sensor Type: CCD CCD
Sensor Manufacturer:    
Effective Megapixels: 8.0 16.0
Sensor Format: 1/2.35 inch 1/2.3 inch
Sensor size: 27.2556mm2 (6.03mm x 4.52mm) 28.0735mm2 (6.17mm x 4.55mm)
Approximate Pixel Pitch: 1.86 microns 1.34 microns
Focal Length Multiplier: n/a n/a
Aspect Ratio: 4:3, 16:9 4:3
Color Filter Type:   RGBG
Anti Aliasing Filter:    
Self-Cleaning: No No
Sensor shift image stabilization: Yes No
On-Sensor Phase Detect: No No
DxO Sensor Score:    
DxO Color Depth Score (bits):    
DxO Dynamic Range Score (evs):    
DxO Maximum Effective ISO Score (iso):    
Image Capture
Image Resolution: 3248 x 2436 (7.9 MP, 4:3),
2560 x 1920 (4.9 MP, 4:3),
2304 x 1728 (4.0 MP, 4:3),
2048 x 1536 (3.1 MP, 4:3),
1920 x 1080 (2.1 MP, 16:9),
1600 x 1200 (1.9 MP, 4:3),
1280 x 960 (1.2 MP, 4:3),
640 x 480 (0.3 MP, 4:3) 		4608 x 3456 (15.9 MP, 4:3),
3264 x 2448 (8.0 MP, 4:3),
1600 x 1200 (1.9 MP, 4:3),
640 x 480 (0.3 MP, 4:3),
4608 x 2592 (11.9 MP, 16:9)
Image File Format: JPEG JPEG (EXIF 2.3)
Continuous-mode frames/second: 1.0 0.8
Video Capture
Can take movies: Yes Yes
Movie Resolution: 640x480 (30)
640x480 (15)
320x240 (30)
320x240 (15) 		1280x720 (25p)
640x480 (30p)
Movie File Format: AVI Motion JPEG MOV (Image: H.264, Audio: Monoaural Linear PCM)
Composite Video Out: Yes Yes
NTSC/PAL Switchable Video: Yes
Video Usable as Viewfinder:
HD Video Out: No
HD Video Connection:
Lens & Optics
Lens Mount: n/a n/a
Lens: Olympus lens Canon Zoom Lens
Focal Length (35mm equivalent): 36 - 180mm 28 - 140mm
Focal Length (actual): 6.4 - 32mm 5 - 25mm
Zoom Ratio: 5.00x 5.00x
Aperture Range: f/3.3 (wide) / f/5.0 (tele) - ??? f/2.8 (W) / f/6.9 (T) - ??
Integrated ND Filter: No No
Normal Focus Range: 70 cm to Infinity
27.6 in to Infinity 		5 cm to Infinity
2.0 in to Infinity
Macro Focus Range: 3 - 70 cm
1.2 - 27.6 in 		3 - 60 cm
1.2 - 23.6 in
Filter Thread: n/a n/a
Thread Type: n/a n/a
Optical Image Stabilization: No No
Digital Zoom: Yes Yes
Digital Zoom Values: 5.6x Up to 4x
Auto Focus
Auto Focus: Yes Yes
Auto Focus Type: CCD contrast detection Contrast Detect AF with Face Detection
Auto Focus Assist Light? No Yes
Manual Focus: No No
Viewfinder
Viewfinder: LCD LCD
Viewfinder Type:    
Focus Peaking: No No
EVF Resolution: n/a n/a
Viewfinder Magnification (35mm equivalent):    
Viewfinder Magnification (nominal/claimed):    
Display
Eye-level Viewfinder: No No
Rear Display: Yes Yes
Rear Display Size (inches): 2.7 2.7
Rear Display Resolution: 230,000 dots 230,000 dots
Touchscreen: No No
Articulating Screen: No No
Tilt Swivel Screen: No No
Selfie Screen: No No
Max Playback Zoom: 10.0x 10.0x
Top Deck Display:
Exposure
Maximum ISO (native):    
Minimum ISO (native):    
ISO Settings: Auto, 64, 100, 200, 400, 800, 1600 Auto, 100, 200, 400, 800, 1600
Auto ISO Mode: No Yes
White Balance Settings: Auto, Daylight, Overcast, Tungsten, Fluorescent 1, Fluorescent 2, Fluorescent 3 Auto, Daylight, Cloudy, Tungsten, Fluorescent, Fluorescent H, Custom
Shutter Speed Range: 1/2000 - 4 sec 1/2000 - 15 sec
Bulb Mode: No No
Exposure Compensation: +/- 2.0EV in 0.3EV steps +/- 2.0EV in 0.3EV steps
Metering Modes: Digital ESP, Spot, Face detection AE w/ face-detection AF Evaluative, Center-weighted average, Spot (center)
Program Auto Exposure: Yes Yes
Aperture Priority: No No
Shutter Priority: No No
Full Manual Exposure: No No
Creative Exposure Modes: Portrait, Landscape, Landscape+Portrait, Night, Night+Portrait, Sport, Indoor, Candle, Self Portrait, Available Light Portrait, Sunset, Fireworks, Cuisine, Behind Glass, Documents, Auction, Shoot & Select 1 / 2, Beach&Snow, Pre-capture Movie Portrait, Face Self-timer, Low Light, Fisheye Effect, Miniature Effect, Toy Camera Effect, Monochrome, Super Vivid, Poster Effect, Snow, Fireworks, Long Shutter, Discreet, iFrame Movie
Self Timer: 12 seconds seconds 2, 10, Custom seconds
Time Lapse (intervalometer): No  
High Resolution Composite: No No
Flash
Built-in Flash: Yes Yes
Flash Modes: Auto, Red-Eye Reduction, Fill-In, Off Auto, Flash On, Slow Synchro, Flash Off
Flash Guide Number (ISO 100): n/a n/a
Flash Range Description: Wide: 0.66 - 14.4ft. (0.2 - 4.4m); Tele: 1.2 – 10.2ft. (0.6 - 3.1m) at ISO 800 Auto ISO: 50 cm - 3.0 m (W), 1.0 - 2.0 m (T)
Max Flash Sync:    
Flash Exposure Compensation:    
External Flash Connection: n/a n/a
Built-In Wireless Flash Control:    
Image Storage
Usable Memory Types: xD SD / SDHC / SDXC
UHS Support:    
Other Memory:    
Dual Card Slots: No No
RAW Capture Support: No No
Uncompressed Format:    
Movie File Format: AVI Motion JPEG MOV (Image: H.264, Audio: Monoaural Linear PCM)
Included Memory: 14.8 MB No memory included
Included Memory Type: built-in memory  
Connectivity
Built-In Wi-Fi: No No
NFC: No No
Bluetooth: No No
Built-In GPS: No No
Microphone Jack: No No
Headphone Jack: No No
External Connections: USB 2.0 High Speed USB 2.0 High Speed
PictBridge Compliant: No Yes
DPOF Compliant: No Yes
Remote Control: No
Remote Control Type:    
Connections (extended):    
Performance Timing
Cycle time for JPEG shooting in single shot mode (seconds per frame, max resolution):    
Cycle time for RAW shooting in single shot mode (seconds per frame):    
Buffer size for RAW shooting in single shot mode (frames):    
Cycle time for RAW+JPEG shooting in single shot mode (seconds per shot):    
Camera penalizes early shutter press?
JPEG shooting speed in burst mode (fps, max resolution): 1.0 0.8
Buffer size for JPEG shooting in burst mode (frames, max resolution): 6  
RAW shooting speed in burst mode (fps):    
Buffer size for RAW shooting in burst mode (frames):    
RAW+JPEG shooting speed in burst mode (fps):    
Buffer Size for RAW+JPEG shooting in burst mode (frames):    
Shutter lag (full AF, wide/mid):    
Shutter lag (full AF, tele):    
Shutter lag (full AF, live view - DSLR):    
Shutter lag (prefocused, live view - DSLR):    
Shutter Lag (manual focus):    
Shutter lag (full AF, with flash):    
Shutter Lag (prefocused):    
Shutter Lag (notes):    
Startup Time:    
Play -> Record Time:    
Flash cycle time, full power:    
Power
Battery Life, Stills (CIPA Rating Monitor/Live View):   500 shots (NiMH AA)
Battery Life, Still (CIPA Rating OVF/EVF):    
Battery Life, Video:    
Battery Form Factor: Proprietary LI-50B 2 x AA
Usable Battery Types: Lithium Ion rechargeable Lithium or Alkaline disposable, NiMH rechargeable
Batteries Included: 1 x Proprietary LI-50B Lithium Ion rechargeable 2 x AA Alkaline disposables
Battery Charger Included (dedicated charger or AC/USB adapter): Yes No
Dedicated Battery Charger Included:
Internal Charging Supported:
Software
Included Software:   Canon Software Suite CD-ROM
OS Compatibility:   Windows, Mac OS
Miscellaneous
Notes & Features: 720p HD videos, Smart Auto with 32 modes, Help button. Available in black, silver or red.