What is the crop factor of the Canon G12?
The Canon PowerShot G12 is equipped with a 1/1.7-inch sensor, whose diagonal measures 9.5mm. The sensor has a crop factor (or format factor, or focal length multiplier) of 4.6.
The crop factor is defined as the ratio of the 35mm full-frame film diagonal to the diagonal of a digital sensor. This number indicates how a lens behaves in relation to the size of the image sensor.
Sensor size comparison with a film slide
With a crop factor of 4.6, the sensor in the Canon G12 is smaller than the receptor area of a 35mm film slide or negative. As a result, the lens that is attached to the Canon G12 will offer a narrower angle of view and provide deeper depth of field than a lens of similar focal length and aperture on a film camera. The equivalent focal length is obtained by multiplying the actual focal length of the lens with the crop factor. For example, a 11mm lens on the Canon G12 will provide the same angle of view and depth of field as a 50mm normal lens on a film camera (11mm * 4.6 = 50mm).
Sensor specs and performance
The table below compares the sensor specs of the Canon G12 to those of several similar cameras. The reported DXO values are indicators of the sensor's imaging quality (higher is better), covering color depth (DXO Portrait), dynamic range (DXO Landscape), and high-ISO noise (DXO Sports). Larger sensor cameras tend to outperform cameras of the same generation that are equipped with a smaller imager. On the other hand, larger sensors are more expensive and require bigger and heavier lenses than smaller light receptors.
Camera Model |
Sensor Class |
Resolution (MP) |
Horiz. Pixels |
Vert. Pixels |
Video Format |
DXO Portrait |
DXO Landscape |
DXO Sports |
DXO Overall |
||
---|---|---|---|---|---|---|---|---|---|---|---|
1. | Canon G12 | 1/1.7 | 10.0 | 3648 | 2736 | 720/24p | 20.4 | 11.2 | 161 | 47 | |
2. | Canon G15 | 1/1.7 | 12.0 | 4000 | 3000 | 1080/24p | 19.9 | 11.5 | 165 | 46 | |
3. | Canon G16 | 1/1.7 | 12.0 | 4000 | 3000 | 1080/60p | 21.0 | 11.7 | 230 | 54 | |
4. | Canon SX50 | 1/2.3 | 12.0 | 4000 | 3000 | 1080/24p | 20.3 | 11.2 | 179 | 47 | |
5. | Fujifilm X10 | 2/3 | 12.0 | 4000 | 3000 | 1080/30p | 20.5 | 11.3 | 245 | 50 | |
6. | Nikon P7800 | 1/1.7 | 12.0 | 4000 | 3000 | 1080/30p | 21.2 | 11.7 | 200 | 54 | |
7. | Olympus E-450 | Four Thirds | 10.0 | 3648 | 2736 | none | 21.5 | 10.5 | 512 | 56 | |
8. | Panasonic FZ150 | 1/2.3 | 12.0 | 4000 | 3000 | 1080/60p | 19.4 | 10.9 | 132 | 40 | |
9. | Panasonic G2 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.3 | 493 | 53 | |
10. | Panasonic G10 | Four Thirds | 12.0 | 4000 | 3000 | 720/30p | 21.2 | 10.1 | 411 | 52 | |
11. | Panasonic LX5 | 1/1.7 | 10.0 | 3648 | 2736 | 720/60p | 19.6 | 10.8 | 132 | 41 |
In the United States, the G12 was initially launched in September 2010 at a price of $499.
Camera to camera comparisons
If you would like to see a side-by-side review with another camera, just make a corresponding selection in the search boxes below. Alternatively, you can follow any of the listed hyperlinks for comparisons that others found interesting.
Camera Model | Canon G12 | |
---|---|---|
Camera Type | Fixed lens compact camera | |
Camera Lens | 28-140mm f/2.8-4.5 | |
Launch Date | September 2010 | |
Launch Price | USD 499 | |
Sensor Specs | ||
Sensor Technology | CCD | |
Sensor Format | 1/1.7" Sensor | |
Sensor Size | 7.6 x 5.7 mm | |
Sensor Area | 43 mm2 | |
Sensor Diagonal | 9.5 mm | |
Crop Factor | 4.6x | |
Sensor Resolution | 10 Megapixels | |
Image Resolution | 3 648 x 2 736 pixels | |
Pixel Pitch | 2.07 μm | |
Pixel Density | 23.04 MP/cm2 | |
Moiré control | Anti-Alias filter | |
Movie Capability | 720/24p Video | |
ISO Setting | 80 - 3 200 ISO | |
ISO Boost | 80 - 12 800 ISO | |
Image Processor | DIGIC 4 | |
DXO Sensor Quality (score) | 47 | |
DXO Color Depth (bits) | 20.4 | |
DXO Dynamic Range (EV) | 11.2 | |
DXO Low Light (ISO) | 161 | |
Screen Specs | ||
Viewfinder Type | Optical viewfinder | |
Top-Level Screen | no Top Display | |
LCD Framing | Live View | |
LCD Size | 2.8 inch | |
LCD Resolution | 461k dots | |
LCD Attachment | Swivel screen | |
V-logging Friendliness | No front-flip | |
Touch Input | No touchscreen | |
Shooting Specs | ||
Focus System | Contrast-detect AF | |
Manual Focusing Aid | no Peaking Feature | |
Maximum Shutter Speed | 1/4000s | |
Continuous Shooting | 1.1 shutter flaps/s | |
Silent Shooting | no E-Shutter | |
Time Lapse Photography | no Intervalometer | |
Fill Flash | Built-in Flash | |
Storage Medium | SDXC cards | |
Single or Dual Card Slots | Single card slot | |
UHS card support | no | |
Connectivity Specs | ||
External Flash | Hotshoe | |
USB Connector | USB 2.0 | |
HDMI Port | mini HDMI | |
Wifi Support | no Wifi | |
Body Specs | ||
Battery Type | Canon NB-7L power pack | |
Battery Life (CIPA) | 370 shots per charge | |
Body Dimensions |
112 x 76 x 48 mm (4.4 x 3.0 x 1.9 in) |
|
Camera Weight | 401 g (14.1 oz) |
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