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- Camera Type: Compact-type digital still camera with built-in zoom lens, autofocus, auto exposure and auto flash
- Effective Pixels: 5.0 megapixels
- Image Capture Device Type: 1/1.8 inches interline transfer CCD with a primary color filter
- Total Pixels: 5.25 megapixels
- Color Depth: 12 bit x 3 colors
- Recorded Pixels: Still - 2592 x 1944 Pixels, 2048 x 1536 Pixels, 1600 x 1200 pixels, 1024 x 768 pixels, 640 x 480 pixels; Movie - 320 x 240
- Focus System Type: Hybrid AF (TTL contrast detection autofocus system combined with exo-passive sensor)
- Autofocus: Wide AF, Spot AF and Infinity Landscape Mode
- Manual Focus: 0.79 inches (0.02m) to Infinity
- Focusing Range: Normal: 1.97 feet (0.6m) to Infinity; Macro: 5.9 inches (0.15m) to 2.13 feet (0.65m); Super Macro: 0.79 inches (0.02m) to 2.13 feet (0.65m) at 7.8mm
- Lens Type: smc PENTAX power zoom
- Focal Length: 7.8 mm - 39 mm
- 35mm Equivalent: 37.5 mm - 187.5 mm
- Aperture Range: f2.8 - f4.6
- Construction: 9 elements in 7 groups (two dual-sided aspherical elements)
- Optical Zoom: 5x
- Digital Zoom: 4x
- Combined: 20x
- Light Metering Method: TTL metering with choice of: Multi-segment, Center-weighted and Spot meter
- Sensitivity: Auto, or user select ISO 64,100, 200, 400
- Exposure Control Method: Program AE
- Exposure Modes: Metered manual, Aperture-priority AE, Shutter-priority AE, Program, Picture, Panorama assist, Movie, 3D image, Digital filters, User
- Exposure Compensation: +/-2 EV (1/3 steps)
- Shutter Type: Programmed AE electronic lens shutter with CCD electronic shutter
- Shutter Speed: Approx. 1/2000 - 15 seconds(1/1000 in Metered manual and Shutter-priority AE)
- White Balance Control: TTL Auto, Pre-set, Custom White Balance
- White Balance Setting: Auto, Daylight, Shade, Tungsten Light, Fluorescent Light (W, N, D), Manual
- Flash: Built-in series-control auto flash, flash exposure compensation (+/- 2 EV in 1/3 steps), auto discharge under low light and backlit conditions in auto mode
- Flash Operation Modes: Auto, Flash-Off, Flash-On, Auto + red-eye reduction, Flash-On + red-eye reduction
- Flash Range: approx. 1.31 feet (0.4m) - 17.1 feet (5.2m) (7.8mm at ISO Auto); approx. 0.5 feet ( 0.15m) - 10.5 feet (3.2m) (39mm at ISO Auto
- Shooting Modes: Metered manual, Aperture-priority AE, Shutter-priority AE, Program, Picture, Panorama assist, Movie, 3D image, Digital filters, User
- Picture Modes: Landscape, Night scene, Flower, Portrait, Surf and Snow, Autumn color, Sunset, Fireworks, Text
- Digital Filter: Black and White, Sepia, Red, Pink, Yellow, Green, Blue, Purple, Soft
- Drive Modes: Single-Shot, Continuous, Self-timer-10 sec. Remote control, Interval timer, Multiple exposure
- Movie Mode: Shooting time: As long as memory remains - with sound
- Time Modes: dd/mm/yy, mm/dd/yy, yy/mm/dd
- World Time: Display of the time in 62 cities (28 time zones)
- Alarm Clock: Displays image (three memory settings), Snooze function
- Storage Media: Removable: Secure Digital (SD), Multimedia card(MMC)
- File Formats: Still - JPEG (Exif 2.2), DCF (Design rule for Camera File system), DPOF (Digital Print Order Format), PctBridge compatible; Movie - MOV (QuickTime Movie Format) 15 fps with sound; Voice - WAV (ADPCM) Recordable time depends on the remaining capacity of the memory card
- JPEG Compression Mode: Tiff, Good, Better, Best
- Recorded pixels with 16MB Card(Pixels - Best, Better, Good): 2592 x 1944 - 4, 8, 16; 2048 x 1536 - 7, 12, 18; 1600 x 1200 - 11, 20, 27; 1024 x 768 - 25, 45, 56; 640 x 480 - 53, 82, 100
- Optical Viewfinder: Actual image zoom viewfinder with diopter adjustment from approx. -3m to +1
- LCD Monitor: 1.5 inch, low temperature Polysilicon TFT color LCD with Histogram Display
- LCD Coverage: 100 percent
- Playback Modes File: Single, Index- Nine image
- Magnification: 8x
- Playback Mode: Slide Show, Scroll and Voice Memo, Image swivel available
- Erase Modes: Single, All
- Image Protect: Single, All
- Interface Type: AV output terminal, USB terminal, DC input terminal
- Video Output: Compatible with NTSC and PAL formats (monaural sound)
- Power Source Lithium: ion battery (rechargeable) approx.400 shots with one charge(According to in house PENTAX testing), AC adaptor kit (optional)
- Operating Temperatures: 32 degrees - 104 degrees F (0 - 40 degrees Celsius)
- Camera Casing: Aluminum Alloy
- Dimensions (W x H x D): 3.9 x 2.3 x 1.6 inches (100 x 59 x 39.5 mm)
- Weight: 7.2 ounces (205g) without battery and SD memory card; 8.8 ounces (250g) loaded and ready
- Kit Contents: Optio 555 Camera, Rechargeable Lithium-ion Battery DL-I7, 16MB SD Card, Battery Charger Kit K-BC7U, AV Cable I-AVC7, USB Cable I-USB7, 3D Image viewer O-3DV1, Software (CD ROM) - ACDSeeTM, USB Driver, Strap O-ST5, Operating manual
