Specifications#
- Brand
- Canon
- Model
- PowerShot A650 IS
- Camera type
- Compact
- Sensor size
- 7.4 × 5.5 mm (1/1.7" sensor)
- Crop factor
- 4.68×
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 4.68 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° | 69.0° | 98.3° |
| 4.5 mm | 21 mm | 79.2° | 62.9° | 91.6° |
| 5 mm | 23 mm | 73.3° | 57.6° | 85.6° |
| 6 mm | 28 mm | 63.6° | 49.2° | 75.3° |
| 8 mm | 37 mm | 49.9° | 37.9° | 60.1° |
| 10 mm | 47 mm | 40.8° | 30.8° | 49.7° |
| 12 mm | 56 mm | 34.4° | 25.8° | 42.2° |
| 15 mm | 70 mm | 27.9° | 20.8° | 34.3° |
| 20 mm | 94 mm | 21.1° | 15.7° | 26.0° |
| 25 mm | 117 mm | 16.9° | 12.6° | 21.0° |
| 30 mm | 140 mm | 14.1° | 10.5° | 17.5° |
| 40 mm | 187 mm | 10.6° | 7.9° | 13.2° |
| 50 mm | 234 mm | 8.5° | 6.3° | 10.6° |
| 70 mm | 327 mm | 6.1° | 4.5° | 7.6° |
| 100 mm | 468 mm | 4.3° | 3.2° | 5.3° |
| 150 mm | 701 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 | 47.2 cm | 4.41 m | ∞ | ∞ | ∞ | ∞ | 1.25 m |
| 4 mm | f/2.8 | 80.7 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 89.5 cm |
| 4 mm | f/4 | 2.17 m | ∞ | ∞ | ∞ | ∞ | ∞ | 62.8 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 31.6 cm |
| 9 mm | f/2 | 7.8 cm | 32.2 cm | 1.40 m | 3.67 m | 21.1 m | ∞ | 6.32 m |
| 9 mm | f/2.8 | 11.0 cm | 46.2 cm | 2.19 m | 7.11 m | ∞ | ∞ | 4.52 m |
| 9 mm | f/4 | 15.9 cm | 69.7 cm | 4.19 m | 55.7 m | ∞ | ∞ | 3.17 m |
| 9 mm | f/8 | 34.4 cm | 2.07 m | ∞ | ∞ | ∞ | ∞ | 1.59 m |
| 15 mm | f/2 | 2.8 cm | 11.3 cm | 45.9 cm | 1.05 m | 3.09 m | 16.9 m | 17.6 m |
| 15 mm | f/2.8 | 3.9 cm | 15.8 cm | 65.0 cm | 1.52 m | 4.73 m | 43.7 m | 12.5 m |
| 15 mm | f/4 | 5.5 cm | 22.8 cm | 95.4 cm | 2.31 m | 8.40 m | ∞ | 8.78 m |
| 15 mm | f/8 | 11.2 cm | 47.3 cm | 2.28 m | 7.62 m | ∞ | ∞ | 4.40 m |
| 25 mm | f/2 | 1.0 cm | 4.0 cm | 16.2 cm | 36.8 cm | 1.03 m | 4.27 m | 48.7 m |
| 25 mm | f/2.8 | 1.4 cm | 5.6 cm | 22.8 cm | 51.7 cm | 1.46 m | 6.25 m | 34.8 m |
| 25 mm | f/4 | 2.0 cm | 8.0 cm | 32.7 cm | 74.4 cm | 2.13 m | 9.84 m | 24.4 m |
| 25 mm | f/8 | 3.9 cm | 16.1 cm | 66.6 cm | 1.56 m | 4.90 m | 49.8 m | 12.2 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.) | 26.7 s |
| 5 mm (23 mm eq.) | 21.4 s |
| 6 mm (28 mm eq.) | 17.8 s |
| 7 mm (33 mm eq.) | 15.3 s |
| 11 mm (51 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 A650 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 × 4.68.
Similar cameras#
Other 1/1.7" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the Canon PowerShot A650 IS?
The Canon PowerShot A650 IS has a crop factor of 4.68× relative to 35 mm full frame (diagonal 9.3 mm vs 43.3 mm).
What size is the Canon PowerShot A650 IS sensor?
7.4 × 5.5 mm (1/1.7"), an area of 41 mm² — 5% of full frame.
Is the Canon PowerShot A650 IS full frame?
No — its sensor is 1/1.7", which is 21.1× smaller in area than full frame.
How long can I expose the night sky with the Canon PowerShot A650 IS?
With a 5 mm lens (23 mm equivalent) the 500 rule gives 21 s.
Sources & licences#
- Wikidata Q10887026 — 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