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The G12 is extremely similar to its predecessor the G11 in terms of specification, but Canon has made some significant improvements. Here is a list of the key differences:
- Slightly lighter (by 4g)
- Higher resolution video mode (720p up from VGA)
- ISO expansion up to 12,800 (at 2.5MP)
- ISO control in 1/3EV steps
- New front control dial (similar to that found on EOS DSLRs)
- Greater choice of aspect ratios
- Hybrid IS mode
- HDR mode
- Electronic spirit level
- Tracking AF mode
S90, G11 and G12 compared (key differences)
 Canon Powershot S95 |  Canon Powershot G11 |  Canon Powershot G12 | |
|---|---|---|---|
| Optical zoom | • 28-105mm (equivalent) | • 28-140mm (equivalent) | • 28-140mm (equivalent) |
| Aperture range | • f/2.0-4.9 | • f/2.8-4.5 | • f/2.8-4.5 |
| Video mode | • MOV [H.264 + Linear PCM (stereo)]: 1280 x 720 @ 24 fps 640 x 480 @ 30fps 320 x 240 @ 30fps Miniature Effect (HD, L) 6fps, 3fps, 1.5 fps | • MOV [H.264 + Linear PCM (monaural)]: 640x480 @ 30fps 320x240@30fps | • MOV [H.264 + Linear PCM (stereo)]: 1280 x 720 @ 24 fps 640 x 480 @ 30fps 320 x 240 @ 30fps Miniature Effect (HD, L) 6fps, 3fps, 1.5 fps |
| Audio | • Stereo | • Mono | • Stereo |
| Aspect Ratios | • 16:9 • 3:2 • 4:3 • 1:1 • 4:5 | • 4:3 • 16:9 | • 16:9 • 3:2 • 4:3 • 1:1 • 4:5 |
| LCD screen | • 3.0" TFT LCD monitor • 460,000 dots • Approx 100% coverage | • 2.8" Vari-angle TFT LCD monitor • 460,000 dots • Approx 100% coverage | • 2.8"" Vari-angle TFT LCD monitor • 460,000 dots • Approx 100% coverage |
| Viewfinder | None | Real-image zoom, optical viewfinder | Real-image zoom, optical viewfinder |
| Dimensions | 100 x 58 x 30mm | 112 x 76 x 48 mm | 112 x 76 x 48mm |
| Weight (body only) | Approx. 193g | Approx. 355g | Approx. 351g |
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