Comparisons / Comparison of Pentax Optio A20 and Pentax Optio S12

Comparison of Pentax Optio A20 and Pentax Optio S12 [S]ave

Attribute
Pentax Optio S12 ×
Pentax Optio A20 ×
General
ModelPentax Optio S12Pentax Optio A20
BrandPentaxPentax
Manufacturer urlhttps://us.ricoh-imaging.com/https://us.ricoh-imaging.com/
Model numberS12A20
Camera formatUltra CompactCompact
Release year (year)20082006
Tripod mount--
Length (mm)9189
Width (mm)2323
Height (mm)5655
Weight (g)130145
Waterproof--
Image Sensor
Sensor typeCCDCCD
Effective megapixels (MP)1210
Sensor format1/1.7 inch1/1.8 inch
Sensor area (mm²)43.3238.2
Sensor width (mm)7.67.18
Sensor height (mm)5.75.32
Approximate pixel pitch (micron)1.91.97
Aspect ratio4:34:3
Color filter typeRGBGRGBG
Self-cleaning--
Sensor shift image stabilization--
On-sensor phase detect--
Image Capture
Image resolution
  • 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)
  • 1024 x 768(0.8 mp 4:3)
  • 1600 x 1200(1.9 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)
  • 640 x 480(0.3 mp 4:3)
Image file format
  • jpeg (exif 2.2)
  • jpeg (exif 2.2)
Video Capture
Can take movies++
Movie resolution
  • 320x240
  • 640x480
  • 320x240
  • 640x480
Image Storage
Movie file formatAVI (DivX MPEG-4)AVI (MPEG-4 DivX)
Composite video out++
Ntsc/pal switchable video++
Lens and Optics
Lenssmc PENTAX Zoom Lens (7 elements in 5 groups)smc Pentax
Focal length (35mm equivalent) (mm)37.00 - 111.0037.00 - 112.00
Focal length (actual) (mm)7.007.00
Zoom ratio (x)33
Aperture range (f)0.19 - 0.360.19 - 0.36
Integrated nd filter--
Min focus range (cm)3535
Macro focus range (cm)6 - 406 - 40
Optical image stabilization--
Digital zoom++
Digital zoom values (x)
  • 6
  • 4
Auto Focus
Auto focus++
Auto focus typeContrast Detection; 5 point AF, spot, tracking, and face recognition autofocus modes available5 point contrast detection w/ spot, tracking, infinity landscape, and pan focus modes
Auto focus assist light+-
Manual focus++
Viewfinder
ViewfinderLCDLCD
Focus peaking--
Display
Eye-level viewfinder--
Rear display++
Rear display size (inch)2.52.5
Rear display resolution (dots)232,000232,000
Touchscreen--
Articulating screen--
Tilt swivel screen--
Selfie screen--
Max playback zoom (x)88
Exposure
Iso settingsAuto, 64, 100, 200, 400, 800, 1600; 3200 available in Digital SR modeAuto, 64, 100, 200, 400, 800, 1600* (blur reduction mode)
Auto iso mode+-
White balance settings
  • auto
  • daylight
  • fluorescent
  • manual
  • shade
  • tungsten
  • auto
  • daylight
  • fluorescent light
  • manual
  • shade
  • tungsten light
Shutter speed range (s)1/2000 - 41/2000 - 4
Bulb mode--
Exposure compensation+/- 2.0EV in 0.3EV steps+/- 2.0EV in 0.3EV steps
Explosure metering modesTTL Multi-segment, Center-weighted & Spot meterTTL metering: Multi-segment, Center-weighted, Spot
Program auto exposure++
Aperture priority--
Shutter priority++
Full manual exposure+-
Creative exposure modesNight Scene, Landscape, Flower, Natural Skin Tone, Portrait, Half Length Portrait (3M), Kids, Digital SR (5M), Sport, Surf & SnowAuto Scene, Night scene, Movie, Voice record, Landscape, Flower, Portrait, Kids, Blur reduction, Surf & Snow, Candle Light, Text
Self timer (s)
  • 2
  • 10
  • 2
  • 10
High resolution composite--
Flash
Built-in flash++
Flash modes
  • auto
  • off
  • on
  • red-eye
  • soft flash
  • auto
  • auto + red-eye reduction
  • auto backlight compensation
  • flash-off
  • flash-on
  • flash-on + red-eye reduction
Flash range descriptionApprox 22’ (wide, auto ISO), 11’ (tele, auto ISO)Wide: 0.20 - 23 ft (0.06 – 7.1 m); Tele: Approx. 1.15 – 11 ft (0.35 – 3.5 m)
Usable memory types
  • sd
  • sdh
  • sd
  • sdh
Dual card slots--
Raw capture support--
Included memory (MB)2124
Included memory typeInternalbuilt-in memory
Connectivity
Built-in wi-fi--
NFC--
Bluetooth--
Built-in gps--
Microphone jack--
Headphone jack--
External connections
  • usb 2.0 high speed
  • usb 1.1
Pictbridge compliant++
Dpof compliant++
Remote control-+
Connections (extended)
  • dc input
  • dc input
Power
Battery life, stills (cipa rating monitor/live view) (shots)270-
Battery form factorProprietary D-LI68Proprietary D-LI8
Usable battery types
  • lithium-ion rechargeable
  • lithium ion rechargeable
Batteries included1 x Proprietary D-LI68 Lithium-ion rechargeable1 x Proprietary D-LI8 Lithium Ion rechargeable
Battery charger included (dedicated charger or ac/usb adapter)++
Software
Included software
  • tba
  • software (s-sw42)
Os compatibility
  • tba
  • mac os
  • windows
Miscellaneous
Notes and features-Software blur reduction mode locks resolution to 5 megapixels. Frame composition mode locks resolution to 3 megapixels.



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