Canon PowerShot G1 Specifications

Street Price US$ 1100
Europe: 2,499 DM (� 1,277, � 780)
Max resolution 2048 x 1536
Low resolution 1024 x 768
640 x 480
Image ratio w:h 4:3
CCD pixelsClick for help 3.34 megapixels (3.14 effective)
CCD sizeClick for help** 1/1.8" (0.556")
CCD colour filter arrayClick for help C - Y - G - M
ISO ratingClick for help Auto (50-100), ISO 50, 100, 200, 400
Lens 8 elements in 7 groups (F2.0 - F2.5)
Lens thread 58mm via optional lens adapter
Zoom wide (W)Click for help 34 mm
Zoom tele (T)Click for help 102 mm (3 x)
Digital zoomClick for help Yes, 2 x or 4 x
Auto Focus Single or Continuous AF + Low Light Assist Lamp
Manual FocusClick for help Yes
Normal focus range W/T: 70 cm - Infinity
Macro focus range W: 6 cm - 70 cm
T: 20 cm - 70 cm
White balance override Auto, Five presets, Custom white balance
Min shutterClick for help 8 sec (Shutter Priority or Manual)
Max shutterClick for help 1/1000 sec
Flash Internal, fixed
Flash range W: 0.7 - 4.5 m
T: 0.7 - 3.6 m
External Flash Yes, Hot-Shoe: Canon Speedlite 220EX, 380EX, 420EX and 550EX
Flash modes Auto, Red-eye reduction auto, Red-eye reduction on, On and Off
Exposure modes Auto, Creative (Program AE, Aperture Priority, Shutter Priority, Manual), Pan-Focus, Portrait, Landscape, Night scene, B&W, Stitch Assist, Movie
MeteringClick for help Center-weighted, Spot
Aperture priorityClick for help Yes, F2.0, F2.2, F2.5, F2.8, F3.2, F3.5, F4.0, F4.5, F5.0, F5.6, F6.3, F7.1, F8.0
Shutter priorityClick for help Yes, 1/1000, 1/800, 1/640, 1/500, 1/400, 1/320, 1/250, 1/200, 1/160, 1/125, 1/100, 1/80, 1/60, 1/50, 1/40, 1/30, 1/25, 1/20, 1/15, 1/13, 1/10, 1/8, 1/6, 1/5, 1/4, 0.3, 0.4, 0.5, 0.6, 0.8, 1, 1.3, 1.6, 2, 2.5, 3.2, 4, 5, 6, 8
Full manualClick for help Yes (any combination of above apertures & shutter speeds apart from above 1/500s only F8.0)
Noise reduction At exposures longer than 1.3 secs
AE Lock Yes
Exposure adjustmentClick for help -2EV to +2EV in 1/3EV steps
Bracketing Yes
Continuous shooting Yes, 1.7fps @ 2048 x 1536 FINE with LCD Off
Movie clips 320 x 240, 15 fps, 30 seconds, including audio
Audio clips Yes, WAV file format
Tripod mount Yes
Self-timer Yes, 10s delay
Video out Yes, switchable NTSC / PAL
Storage types Compact Flash Type I & II
Storage included 16 MB Compact Flash Type I card
Uncompressed format Yes, RAW (Canon proprietary)
Compressed format JPEG (EXIF)
Quality Levels RAW, JPEG: Super Fine, Fine, Normal
Viewfinder Yes, optical (with dioptre correction)
LCD 1.8" TFT Flip-out and tilt
Playback zoom Yes, 2.5x to 5.0x
Operating system Proprietary
TWAIN acquire (Required for RAW format)
PC Windows 95/98 (including SE) / Me / NT 4.0 (Service Pack 3 or higher) / 2000, Mac OS 8.1 or higher
Video Out PAL / NTSC (selectable) - including audio
Connectivity USB, RS232C (optional cable)
BatteryClick for help Yes, supplied Canon BP-511 Li-Ion rechargeable
Battery chargerClick for help Yes, supplied AC adapter / charger
Weight (exc. batteries) 420 g (14.8 oz)
Dimensions 120 x 77 x 64 mm
(4.7" x 3" x 2.5")

Click for help- click for pop-up help


What that means is that if it were a vidicon tube it would be 0.556 inches in diameter.

This measuring system is a leftover from the days of video TUBES and has nothing to do with the surface area of the chip in a direct sense. The Edmund Scientific Optics catalog has a sidebar that completely backs up the idea.

For instance, a "one inch" chip has a 16mm diagonal sensor array. A "one half inch" chip has an array of only 8mm in the diagonal. This means that the 1/1.8 = 0.555 inch measurement means NOTHING about the sensor array size. Unless they have changed the entire measurement system just for this chip, the actual sensor patch is 11% larger than the 8mm of a 1/2 chip or 8.88mm in diagonal.

(Mark Schubin of Videography Magazine)