Comparisons / Comparison of Olympus Stylus 790 SW and Pentax Optio T20

Comparison of Olympus Stylus 790 SW and Pentax Optio T20 [S]ave

Attribute
Olympus Stylus 790 SW ×
Pentax Optio T20 ×
General
ModelOlympus Stylus 790 SWPentax Optio T20
BrandOlympusPentax
Manufacturer urlhttp://www.olympusamerica.com/https://us.ricoh-imaging.com/
Model number790 SWT20
Alternate model number(s)
  • u790 sw
-
Camera formatUltra CompactCompact
Release year (year)20072006
Tripod mount++
Length (mm)9495
Width (mm)2120
Height (mm)6159
Weight (g)151155
Waterproof--
Image Sensor
Sensor typeCCDCCD
Effective megapixels (MP)7.17
Sensor format1/2.33 inch1/2.5 inch
Sensor area (mm²)28.224.71
Sensor width (mm)6.135.76
Sensor height (mm)4.64.29
Approximate pixel pitch (micron)21.88
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)
  • 3072 x 2304(7.1 mp 4:3)
  • 640 x 480(0.3 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)
  • 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)
Continuous-mode (fps)1-
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, 10 elements in 8 groups, 3 asphericalsmc PENTAX power zoom
Focal length (35mm equivalent) (mm)38.00 - 114.0038.00 - 113.00
Focal length (actual) (mm)1.006.00
Zoom ratio (x)33
Aperture range (f)0.20 - 0.290.19 - 0.37
Integrated nd filter--
Min focus range (cm)5040
Macro focus range (cm)7 - 5015 - 50
Optical image stabilization--
Digital zoom++
Digital zoom values (x)
  • 5
  • 15
  • 4
Auto Focus
Auto focus++
Auto focus typeCCD Contrast Detection; iESP Auto, Spot AF, Face Detection AF5-point Contrast Detection
Auto focus assist light++
Manual focus-+
Viewfinder
ViewfinderLCDLCD
Focus peaking--
Display
Eye-level viewfinder--
Rear display++
Rear display size (inch)2.53
Rear display resolution (dots)230,000230,000
Touchscreen--
Articulating screen--
Tilt swivel screen--
Selfie screen--
Max playback zoom (x)1012
Exposure
Iso settingsAuto, 80, 100, 200, 400, 800, 1600Auto, 80, 160, 320, 400, 800* (manual mode only)
Auto iso mode--
White balance settings
  • auto
  • daylight
  • fluorescent1
  • fluorescent2
  • fluorescent3
  • overcast
  • tungsten
  • auto
  • daylight
  • fluorescent light
  • manual
  • shade
  • tungsten light
Shutter speed range (s)1/1000 - 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 AETTL Multi-segment metering, 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 PortraitProgram, Landscape, Flower, Portrait, Night scene, Surf & snow, Food, Sport, Pet, Frame
Self timer (s)
  • 12
  • 2
  • 10
Time lapse (intervalometer)--
High resolution composite--
Flash
Built-in flash++
Flash modes
  • auto
  • fill-in
  • off
  • red-eye reduction
  • auto
  • auto + red-eye reduction
  • flash-off
  • flash-on
  • flash-on + red-eye reduction
  • soft flash
Flash range descriptionISO 800: Wide: 0.66ft (0.2m) � 12.5ft. (3.8m); Tele: 2.0ft (0.6m) � 8.5ft. (2.6m)ISO Auto: Wide: 0.49 ft- 14.8 ft (0.15m - 4.5m) ; Tele: 1.31 ft - 8.2 ft (0.4m - 2.5m)
Usable memory types
  • x
  • s
Dual card slots--
Raw capture support--
Included memory (MB)1412
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 2.0 full (low) speed
Pictbridge compliant++
Dpof compliant++
Remote control-+
Connections (extended)
  • audio/video output
  • dc input)
  • multi-terminal (usb connector
  • dc in
Performance Timing
Max cycle time for jpeg shooting (s/frame)2.57-
Camera penalizes early shutter press--
Jpeg shooting speed in burst mode (max resolution) (fps)1-
Shutter lag (full af, wide/mid) (s)0.99-
Shutter lag (full af, tele) (s)1-
Shutter lag (full af, with flash) (s)1.34-
Shutter lag (prefocused) (s)0.11-
Startup time (s)1.3-
Play -> record time (s)1.1-
Flash cycle time, full power (s)5-
Power
Battery life, stills (cipa rating monitor/live view) (shots)200-
Battery form factorProprietary LI-42BProprietary D-LI8
Usable battery types
  • lithium ion rechargeable
  • lithium ion rechargeable
Batteries included1 x Proprietary LI-42B Lithium Ion rechargeable1 x Proprietary D-LI8 Lithium Ion rechargeable
Battery charger included (dedicated charger or ac/usb adapter)++
Software
Included software
  • olympus master 2
  • software s-sw61 (cd-rom)
Os compatibility
  • mac os x v10.3 or later
  • windows 2000pro/xp/vista
-
Miscellaneous
Notes and featuresImprovements over Stylus 770SW include: Face Detection AF, Shadow Adjustment, TruePic III Image Processor, USB 2LCD display is touch-screen type.



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