Comparisons / Comparison of Olympus Stylus 820 and Pentax Optio V20

Comparison of Olympus Stylus 820 and Pentax Optio V20 [S]ave

Attribute
Olympus Stylus 820 ×
Pentax Optio V20 ×
General
ModelOlympus Stylus 820Pentax Optio V20
BrandOlympusPentax
Manufacturer urlhttp://www.olympusamerica.com/https://us.ricoh-imaging.com/
Model number820V20
Camera formatUltra CompactUltra Compact
Release year (year)20072008
Tripod mount++
Length (mm)9697
Width (mm)2423
Height (mm)5656
Weight (g)140145
Waterproof--
Image Sensor
Sensor typeCCDCCD
Effective megapixels (MP)88
Sensor format1/2.35 inch1/2.35 inch
Sensor area (mm²)27.2627.26
Sensor width (mm)6.036.03
Sensor height (mm)4.524.52
Approximate pixel pitch (micron)1.851.85
Aspect ratio4:3, 16:94:3
Color filter type-RGBG
Self-cleaning--
Sensor shift image stabilization--
On-sensor phase detect--
Image Capture
Image resolution
  • 1024 x 768(0.8 mp 4:3)
  • 1280 x 960(1.2 mp 4:3)
  • 1600 x 1200(1.9 mp 4:3)
  • 1920 x 1080(2.1 mp 16:9)
  • 2048 x 1536(3.1 mp 4:3)
  • 2304 x 1728(4.0 mp 4:3)
  • 2560 x 1920(4.9 mp 4:3)
  • 3264 x 2448(8.0 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)
  • 2304 x 1728(4.0 mp 4:3)
  • 2592 x 1944(5.0 mp 4:3)
  • 3264 x 2448(8.0 mp 4:3)
  • 640 x 480(0.3 mp 4:3)
Image file format
  • jpeg
  • jpeg (exif 2.2)
Continuous-mode (fps)6.51.4
Video Capture
Can take movies++
Movie resolution
  • 160x120
  • 320x240
  • 640x480
  • 320x240
  • 640x480
Image Storage
Movie file formatAVI (Motion JPEG)AVI (Motion JPEG)
Composite video out++
Ntsc/pal switchable video++
Lens and Optics
LensOlympus lens (8 elements in 6 groups, 4 aspherical)SMC Pentax Zoom; 8 elements, 6 groups (4 aspherical elements)
Focal length (35mm equivalent) (mm)36.00 - 180.0036.00 - 180.00
Focal length (actual) (mm)4.00 - 32.005.00
Zoom ratio (x)55
Aperture range (f)0.20 - 0.290.18 - 0.29
Integrated nd filter--
Min focus range (cm)7040
Macro focus range (cm)3 - 7010 - 50
Optical image stabilization--
Digital zoom++
Digital zoom values (x)
  • 5.6
  • 5.1
  • 25.5
Auto Focus
Auto focus++
Auto focus typeCCD Contrast Detection with iESP Auto, Spot AF, Face Detection AF, Full-Time AF9 point Contrast Detect AF; spot/auto-tracking available
Auto focus assist light--
Manual focus-+
Viewfinder
ViewfinderLCDLCD
Focus peaking--
Display
Eye-level viewfinder--
Rear display++
Rear display size (inch)2.73
Rear display resolution (dots)230,000230,000
Touchscreen--
Articulating screen--
Tilt swivel screen--
Selfie screen--
Max playback zoom (x)108
Exposure
Iso settingsAuto, 50, 100, 200, 400, 800, 1600, 3200Auto, 80, 100, 200, 400, 800, 1600, 3200, 6400 (6400 in Digital SR mode only)
Auto iso mode-+
White balance settings
  • auto
  • daylight
  • fluorescent1
  • fluorescent2
  • fluorescent3
  • overcast
  • tungsten
  • auto
  • daylight
  • fluorescent
  • manual
  • shade
  • tungsten
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 modesDigital ESP Metering, Spot Metering, Face Detection AE (when Face Detection AF is selected)TTL metering: Multi-segment, Center-weighted, Spot
Program auto exposure++
Aperture priority--
Shutter priority--
Full manual exposure--
Creative exposure modesPortrait, Landscape, Landscape+portrait, Night Scene, Night+portrait, Sport, Indoor, Candle, Self Portrait, Night Scene, Landscape, Portrait, Sport, Flower, Night Scene, Landscape, Flower, Natural Skin Tone, Portrait, Surf & Snow
Self timer (s)
  • 12
  • 2
  • 10
High resolution composite--
Flash
Built-in flash++
Flash modes
  • auto
  • fill-in
  • off
  • red-eye reduction
  • auto
  • flash off
  • flash on
  • redeye
Flash range descriptionISO 800: Wide: 0.66ft (0.2m) � 12.8ft. (3.9m); Tele: 2.0ft (0.6m) � 8.5ft. (2.6m)14’ (wide, auto ISO), 9.2’ (tele, auto ISO)
Usable memory types
  • x
  • sd
  • sdh
Dual card slots--
Raw capture support--
Included memory (MB)4751
Included memory typeInternalInternal
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++
Connections (extended)
  • audio/video output
  • dc input)
  • multi-terminal (usb connecter
-
Performance Timing
Max cycle time for jpeg shooting (s/frame)3.35-
Camera penalizes early shutter press--
Jpeg shooting speed in burst mode (max resolution) (fps)6.51.4
Buffer size for jpeg shooting in burst mode (max resolution) (frames)11-
Shutter lag (full af, wide/mid) (s)0.54-
Shutter lag (full af, tele) (s)0.92-
Shutter lag (full af, with flash) (s)0.82-
Shutter lag (prefocused) (s)0.09-
Shutter lag (notes)Continuous mode is 2048x1546 pixels max.-
Startup time (s)2.1-
Play -> record time (s)1-
Flash cycle time, full power (s)3.7-
Power
Battery life, stills (cipa rating monitor/live view) (shots)300200
Battery form factorProprietary LI-42BProprietary D-LI78
Usable battery types
  • lithium ion rechargeable
  • lithium ion rechargeable
Batteries included1 x Proprietary LI-42B Lithium Ion rechargeable1 x Proprietary D-LI78 Lithium Ion rechargeable
Battery charger included (dedicated charger or ac/usb adapter)++
Software
Included software
  • olympus master 2
  • software (s-sw77) cd-rom
Os compatibility
  • mac os x v10.3 or later
  • windows 2000pro/xp/vista
  • mac os
  • windows
Miscellaneous
Notes and featuresAll-Weather: Equivalent to IEC Standard publication 529 IPX4Face Recognition AF&AE , Smile Capture, Blink Detection For Portraits.



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