Comparisons / Comparison of Canon PowerShot SD770 IS and Pentax Optio A40

Comparison of Canon PowerShot SD770 IS and Pentax Optio A40 [S]ave

Attribute
Canon PowerShot SD770 IS ×
Pentax Optio A40 ×
General
ModelCanon PowerShot SD770 ISPentax Optio A40
BrandCanonPentax
Manufacturer urlhttps://www.usa.canon.com/https://us.ricoh-imaging.com/
Model numberSD770 ISA40
Camera formatUltra CompactUltra Compact
Release year (year)20082008
Tripod mount++
Length (mm)8691
Width (mm)2023
Height (mm)5456
Weight (g)151150
Waterproof--
Image Sensor
Sensor typeCCDCCD
Effective megapixels (MP)1012
Sensor format1/2.3 inch1/1.7 inch
Sensor area (mm²)28.0743.32
Sensor width (mm)6.177.6
Sensor height (mm)4.555.7
Approximate pixel pitch (micron)1.691.9
Aspect ratio4:3, 16:94:3
Color filter typeRGBGRGBG
Self-cleaning--
Sensor shift image stabilization-+
On-sensor phase detect--
Image Capture
Image resolution
  • 1600 x 1200(1.9 mp 4:3)
  • 2272 x 1704(3.9 mp 4:3)
  • 2816 x 2112(5.9 mp 4:3)
  • 3648 x 2048(7.5 mp 16:9)
  • 3648 x 2736(10.0 mp 4:3)
  • 640 x 480(0.3 mp 4:3)
  • 1024 x 768(0.8 mp 4:3)
  • 2048 x 1536(3.1 mp 4:3)
  • 2592 x 1944(5.0 mp 4:3)
  • 3072 x 2304(7.1 mp 4:3)
  • 3648 x 2736(10.0 mp 4:3)
  • 4000 x 3000(12.0 mp 4:3)
  • 640 x 480(0.3 mp 4:3)
Image file format
  • jpeg (exif 2.2)
  • jpeg (exif 2.2)
Continuous-mode (fps)1.4-
Video Capture
Can take movies++
Movie resolution
  • 160x120
  • 320x240
  • 640x480
  • 320x240
  • 640x480
Image Storage
Movie file formatAVI (Motion JPEG)AVI (DivX MPEG-4)
Composite video out++
Ntsc/pal switchable video++
Lens and Optics
LensCanon Zoom Lens (6 elements in 5 groups, including 2 aspherical)SMC Pentax Zoom (7 elements in 5 groups, 3 aspherical)
Focal length (35mm equivalent) (mm)35.00 - 105.0037.00 - 111.00
Focal length (actual) (mm)6.007.00
Zoom ratio (x)33
Aperture range (f)0.07 - 0.360.19 - 0.36
Integrated nd filter--
Min focus range (cm)3035
Macro focus range (cm)3 - 506 - 40
Optical image stabilization+-
Digital zoom++
Digital zoom values (x)
  • 4
  • 6
Auto Focus
Auto focus++
Auto focus type9-point Contrast Detect AF with Face Detection5 point Contrast Detect AF; spot, tracking, and face recognition
Auto focus assist light++
Manual focus-+
Viewfinder
ViewfinderOptical / LCDLCD
Viewfinder typeReal-image optical zoom; 16mm eyepoint-
Focus peaking--
Display
Eye-level viewfinder+-
Rear display++
Rear display size (inch)2.52.5
Rear display resolution (dots)230,000232,000
Touchscreen--
Articulating screen--
Tilt swivel screen--
Selfie screen--
Max playback zoom (x)108
Exposure
Iso settingsAuto, 80, 100, 200, 400, 800, 1600Auto, 50, 100, 200, 400, 800, 1600, 3200 (auto up to 3200 in Digital SR mode)
Auto iso mode++
White balance settings
  • auto
  • cloudy
  • custom
  • daylight
  • fluorescent
  • fluorescent h
  • tungsten
  • auto
  • daylight
  • fluorescent
  • manual
  • shade
  • tungsten
Shutter speed range (s)1/1500 - 151/2000 - 4
Bulb mode--
Exposure compensation+/- 2.0EV in 0.3EV steps+/- 2.0EV in 0.3EV steps
Explosure metering modesEvaluative, Center-weighted average, Spot, Face Detect AETTL metering: Multi-segment, Center-weighted, Spot
Program auto exposure++
Aperture priority--
Shutter priority-+
Full manual exposure-+
Creative exposure modesPortrait, Night Snapshot, Kids & Pets, Indoor, Sunset, Foliage, Snow, Beach, Fireworks, Aquarium, Underwater, Color AccentNatural Skin Tone, Half-length Portrait (3MP), Night Scene, Landscape, Flower, Portrait, Kids, Digital SR (5MP), Surf & Snow
Self timer (s)
  • 1
  • 30
  • 2
  • 10
High resolution composite--
Flash
Built-in flash++
Flash modes
  • auto
  • auto red-eye correction
  • fe lock
  • flash off
  • flash on
  • red-eye reduction
  • slow synchro
  • auto
  • off
  • on
  • redeye
  • soft flash
Flash range descriptionAuto ISO 11 ft / 3.3 m (W), 6.6 ft./ 2.0 m (T)Auto ISO: Wide: 0.20 - 23 ft (0.06 – 7.1 m); Tele: Approx. 1.15 – 11 ft (0.35 – 3.5 m)
Max flash sync (s)1/500-
Usable memory types
  • sd
  • sdh
  • sd
  • sdh
Dual card slots--
Raw capture support--
Included memory (MB)-21
Included memory type-Internal
Connectivity
Built-in wi-fi--
NFC--
Bluetooth--
Built-in gps--
Microphone jack--
Headphone jack--
External connections
  • usb 2.0 high speed
  • usb 2.0 high speed
Pictbridge compliant++
Dpof compliant++
Remote control-+
Remote control type-
  • ir
  • optional
Connections (extended)
  • multipurpose usb/av connector
  • dc input
Performance Timing
Max cycle time for jpeg shooting (s/frame)1.98-
Camera penalizes early shutter press--
Jpeg shooting speed in burst mode (max resolution) (fps)1.4-
Shutter lag (full af, wide/mid) (s)0.75-
Shutter lag (full af, tele) (s)0.86-
Shutter lag (full af, with flash) (s)1.7-
Shutter lag (prefocused) (s)0.07-
Startup time (s)1.6-
Play -> record time (s)3-
Flash cycle time, full power (s)6-
Power
Battery life, stills (cipa rating monitor/live view) (shots)300240
Battery form factorProprietary NB-6LProprietary D-LI68
Usable battery types
  • lithium-ion rechargeable
  • lithium ion rechargeable
Batteries included1 x Proprietary NB-6L Lithium-ion rechargeable1 x Proprietary D-LI68 Lithium Ion rechargeable
Battery charger included (dedicated charger or ac/usb adapter)++
Software
Included software
  • canon software suite cd-rom
  • software (s-sw69) cd-rom
Os compatibility
  • mac os
  • windows
  • mac os
  • windows
Miscellaneous
Notes and featuresOptical Image Stabilization, Motion Detection technology, Hi-ISO Auto and Noise Reduction technology, Face Detection-



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