Specifications#
- Brand
- Canon
- Model
- PowerShot SD950 IS
- Camera type
- Compact
- Sensor size
- 7.4 × 5.4 mm (1/1.7" sensor)
- Crop factor
- 4.70×
Specifications merged from Lensfun and openMVG. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 4.70 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° | 68.2° | 98.0° |
| 4.5 mm | 21 mm | 79.2° | 62.1° | 91.3° |
| 5 mm | 24 mm | 73.3° | 56.9° | 85.3° |
| 6 mm | 28 mm | 63.6° | 48.6° | 75.0° |
| 8 mm | 38 mm | 49.9° | 37.4° | 59.8° |
| 10 mm | 47 mm | 40.8° | 30.3° | 49.4° |
| 12 mm | 56 mm | 34.4° | 25.5° | 42.0° |
| 15 mm | 71 mm | 27.9° | 20.5° | 34.1° |
| 20 mm | 94 mm | 21.1° | 15.4° | 25.9° |
| 25 mm | 118 mm | 16.9° | 12.4° | 20.9° |
| 30 mm | 141 mm | 14.1° | 10.3° | 17.4° |
| 40 mm | 188 mm | 10.6° | 7.8° | 13.1° |
| 50 mm | 235 mm | 8.5° | 6.2° | 10.5° |
| 70 mm | 329 mm | 6.1° | 4.4° | 7.5° |
| 100 mm | 470 mm | 4.3° | 3.1° | 5.3° |
| 150 mm | 705 mm | 2.8° | 2.1° | 3.5° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 6.4 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 | 46.9 cm | 4.31 m | ∞ | ∞ | ∞ | ∞ | 1.26 m |
| 4 mm | f/2.8 | 79.9 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 89.9 cm |
| 4 mm | f/4 | 2.12 m | ∞ | ∞ | ∞ | ∞ | ∞ | 63.1 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 31.7 cm |
| 9 mm | f/2 | 7.8 cm | 32.0 cm | 1.39 m | 3.64 m | 20.6 m | ∞ | 6.35 m |
| 9 mm | f/2.8 | 11.0 cm | 45.9 cm | 2.18 m | 7.01 m | ∞ | ∞ | 4.54 m |
| 9 mm | f/4 | 15.9 cm | 69.2 cm | 4.14 m | 50.8 m | ∞ | ∞ | 3.18 m |
| 9 mm | f/8 | 34.2 cm | 2.05 m | ∞ | ∞ | ∞ | ∞ | 1.60 m |
| 15 mm | f/2 | 2.8 cm | 11.2 cm | 45.6 cm | 1.05 m | 3.07 m | 16.7 m | 17.6 m |
| 15 mm | f/2.8 | 3.9 cm | 15.7 cm | 64.7 cm | 1.51 m | 4.70 m | 42.7 m | 12.6 m |
| 15 mm | f/4 | 5.5 cm | 22.6 cm | 94.9 cm | 2.30 m | 8.32 m | ∞ | 8.83 m |
| 15 mm | f/8 | 11.1 cm | 47.1 cm | 2.26 m | 7.51 m | ∞ | ∞ | 4.42 m |
| 25 mm | f/2 | 1.0 cm | 4.0 cm | 16.2 cm | 36.6 cm | 1.03 m | 4.25 m | 49.0 m |
| 25 mm | f/2.8 | 1.4 cm | 5.6 cm | 22.7 cm | 51.4 cm | 1.45 m | 6.21 m | 35.0 m |
| 25 mm | f/4 | 1.9 cm | 8.0 cm | 32.5 cm | 74.0 cm | 2.12 m | 9.77 m | 24.5 m |
| 25 mm | f/8 | 3.9 cm | 16.0 cm | 66.3 cm | 1.55 m | 4.87 m | 48.5 m | 12.3 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.) | 26.6 s |
| 5 mm (24 mm eq.) | 21.3 s |
| 6 mm (28 mm eq.) | 17.7 s |
| 7 mm (33 mm eq.) | 15.2 s |
| 11 mm (52 mm eq.) | 9.7 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 |
| 21 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 SD950 IS 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 × 4.70.
Similar cameras#
Other 1/1.7" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Canon PowerShot SD950 IS?
The Canon PowerShot SD950 IS has a crop factor of 4.70× relative to 35 mm full frame (diagonal 9.2 mm vs 43.3 mm).
What size is the Canon PowerShot SD950 IS sensor?
7.4 × 5.4 mm (1/1.7"), an area of 40 mm² — 5% of full frame.
Is the Canon PowerShot SD950 IS full frame?
No — its sensor is 1/1.7", which is 21.4× smaller in area than full frame.
How long can I expose the night sky with the Canon PowerShot SD950 IS?
With a 5 mm lens (24 mm equivalent) the 500 rule gives 21 s.
Sources & licences#
- Lensfun camera database — CC BY-SA 3.0
- openMVG sensor width database — MPL-2.0
Last updated October 03, 2026 · How we calculate · Sources