Specifications#
- Brand
- Canon
- Model
- PowerShot G12
- Camera type
- Compact
- Released
- 2010-10-01
- Sensor size
- 7.4 × 5.7 mm (1/1.7" sensor)
- Crop factor
- 4.63×
Specifications merged from Wikidata, Lensfun and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 4.63 to get the full-frame field of view. For fixed-lens cameras use the real focal length printed on the lens (e.g. “6.1–18.3 mm”), not the 35 mm equivalent.
| Lens on this camera | Full-frame equivalent | Horizontal | Vertical | Diagonal |
|---|---|---|---|---|
| 4 mm | 19 mm | 85.8° | 70.5° | 98.9° |
| 4.5 mm | 21 mm | 79.2° | 64.2° | 92.1° |
| 5 mm | 23 mm | 73.3° | 58.9° | 86.1° |
| 6 mm | 28 mm | 63.6° | 50.4° | 75.8° |
| 8 mm | 37 mm | 49.9° | 38.9° | 60.6° |
| 10 mm | 46 mm | 40.8° | 31.5° | 50.1° |
| 12 mm | 56 mm | 34.4° | 26.5° | 42.5° |
| 15 mm | 69 mm | 27.9° | 21.3° | 34.6° |
| 20 mm | 93 mm | 21.1° | 16.1° | 26.3° |
| 25 mm | 116 mm | 16.9° | 12.9° | 21.2° |
| 30 mm | 139 mm | 14.1° | 10.8° | 17.7° |
| 40 mm | 185 mm | 10.6° | 8.1° | 13.3° |
| 50 mm | 232 mm | 8.5° | 6.5° | 10.7° |
| 70 mm | 324 mm | 6.1° | 4.6° | 7.6° |
| 100 mm | 463 mm | 4.3° | 3.2° | 5.3° |
| 150 mm | 695 mm | 2.8° | 2.2° | 3.6° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 6.5 µm (the 0.030 mm full-frame standard scaled by the crop factor).
| Focal | Aperture | 50.0 cm | 1.00 m | 2.00 m | 3.00 m | 5.00 m | 10.0 m | Hyperfocal |
|---|---|---|---|---|---|---|---|---|
| 4 mm | f/2 | 47.9 cm | 4.61 m | ∞ | ∞ | ∞ | ∞ | 1.24 m |
| 4 mm | f/2.8 | 82.2 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 88.6 cm |
| 4 mm | f/4 | 2.26 m | ∞ | ∞ | ∞ | ∞ | ∞ | 62.2 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 31.3 cm |
| 9 mm | f/2 | 7.9 cm | 32.5 cm | 1.42 m | 3.72 m | 22.0 m | ∞ | 6.26 m |
| 9 mm | f/2.8 | 11.1 cm | 46.7 cm | 2.23 m | 7.29 m | ∞ | ∞ | 4.47 m |
| 9 mm | f/4 | 16.1 cm | 70.5 cm | 4.29 m | 67.9 m | ∞ | ∞ | 3.14 m |
| 9 mm | f/8 | 34.9 cm | 2.12 m | ∞ | ∞ | ∞ | ∞ | 1.57 m |
| 15 mm | f/2 | 2.8 cm | 11.4 cm | 46.3 cm | 1.06 m | 3.13 m | 17.2 m | 17.4 m |
| 15 mm | f/2.8 | 3.9 cm | 16.0 cm | 65.7 cm | 1.53 m | 4.79 m | 45.7 m | 12.4 m |
| 15 mm | f/4 | 5.6 cm | 23.0 cm | 96.5 cm | 2.34 m | 8.56 m | ∞ | 8.70 m |
| 15 mm | f/8 | 11.3 cm | 47.8 cm | 2.31 m | 7.82 m | ∞ | ∞ | 4.36 m |
| 25 mm | f/2 | 1.0 cm | 4.0 cm | 16.4 cm | 37.1 cm | 1.04 m | 4.32 m | 48.3 m |
| 25 mm | f/2.8 | 1.4 cm | 5.7 cm | 23.0 cm | 52.2 cm | 1.47 m | 6.32 m | 34.5 m |
| 25 mm | f/4 | 2.0 cm | 8.1 cm | 33.0 cm | 75.1 cm | 2.15 m | 9.98 m | 24.1 m |
| 25 mm | f/8 | 3.9 cm | 16.3 cm | 67.3 cm | 1.58 m | 4.97 m | 52.4 m | 12.1 m |
Equivalent aperture#
Exposure is identical at the same f-number on any format; equivalence only describes depth of field and total light.
Night-sky exposure limits#
Longest exposure before stars trail. The NPF rule accounts for pixel pitch and is stricter than the classic 500 rule — use it for pin-sharp stars on high-resolution sensors. (NPF needs a known resolution and is omitted here.)
| Focal length | 500 rule |
|---|---|
| 4 mm (19 mm eq.) | 27.0 s |
| 5 mm (23 mm eq.) | 21.6 s |
| 6 mm (28 mm eq.) | 18.0 s |
| 8 mm (37 mm eq.) | 13.5 s |
| 11 mm (51 mm eq.) | 9.8 s |
Handheld shutter speed guide#
The reciprocal rule uses the equivalent focal length. High-resolution sensors may need one stop faster than this for pixel-sharp results.
| Focal length | No stabilisation (1/equiv. focal) | With 3-stop IS | With 5-stop IBIS |
|---|---|---|---|
| 5 mm | 1/25 s | 0.3 s | 1.3 s |
| 11 mm | 1/50 s | 1/6 s | 0.6 s |
| 22 mm | 1/100 s | 1/13 s | 0.3 s |
| 43 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Canon PowerShot G12 has a built-in, non-interchangeable lens. Use the real focal length of that lens with the tables above; its full-frame equivalent is that number × 4.63.
Similar cameras#
Other 1/1.7" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Canon PowerShot G12?
The Canon PowerShot G12 has a crop factor of 4.63× relative to 35 mm full frame (diagonal 9.3 mm vs 43.3 mm).
What size is the Canon PowerShot G12 sensor?
7.4 × 5.7 mm (1/1.7"), an area of 42 mm² — 5% of full frame.
Is the Canon PowerShot G12 full frame?
No — its sensor is 1/1.7", which is 20.6× smaller in area than full frame.
How long can I expose the night sky with the Canon PowerShot G12?
With a 5 mm lens (23 mm equivalent) the 500 rule gives 22 s.
Sources & licences#
- Wikidata Q17175555 — CC0
- Lensfun camera database — CC BY-SA 3.0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources