Specifications#
- Brand
- Canon
- Model
- PowerShot G7 X Mark III
- Also known as
- PowerShot G7 X Mark III (3:2)
- Camera type
- Compact
- Sensor size
- 12.7 × 9.5 mm (1" (one-inch) sensor)
- Crop factor
- 2.72×
Specifications merged from Wikidata and Lensfun. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 2.72 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 |
|---|---|---|---|---|
| 8 mm | 22 mm | 77.0° | 61.6° | 89.7° |
| 10 mm | 27 mm | 65.0° | 51.0° | 77.0° |
| 12 mm | 33 mm | 55.9° | 43.4° | 67.1° |
| 14 mm | 38 mm | 48.9° | 37.6° | 59.2° |
| 16 mm | 44 mm | 43.4° | 33.2° | 52.9° |
| 18 mm | 49 mm | 38.9° | 29.7° | 47.7° |
| 20 mm | 54 mm | 35.3° | 26.8° | 43.4° |
| 24 mm | 65 mm | 29.7° | 22.5° | 36.7° |
| 28 mm | 76 mm | 25.6° | 19.3° | 31.7° |
| 35 mm | 95 mm | 20.6° | 15.5° | 25.6° |
| 40 mm | 109 mm | 18.1° | 13.6° | 22.5° |
| 50 mm | 136 mm | 14.5° | 10.9° | 18.1° |
| 56 mm | 152 mm | 13.0° | 9.7° | 16.2° |
| 70 mm | 190 mm | 10.4° | 7.8° | 13.0° |
| 85 mm | 231 mm | 8.6° | 6.4° | 10.7° |
| 100 mm | 272 mm | 7.3° | 5.5° | 9.1° |
| 135 mm | 367 mm | 5.4° | 4.0° | 6.7° |
| 200 mm | 544 mm | 3.6° | 2.7° | 4.6° |
| 300 mm | 816 mm | 2.4° | 1.8° | 3.0° |
| 400 mm | 1088 mm | 1.8° | 1.4° | 2.3° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 11.0 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 |
|---|---|---|---|---|---|---|---|---|
| 8 mm | f/1.8 | 15.6 cm | 68.0 cm | 4.00 m | 40.2 m | ∞ | ∞ | 3.23 m |
| 8 mm | f/2.8 | 25.2 cm | 1.24 m | 50.6 m | ∞ | ∞ | ∞ | 2.08 m |
| 8 mm | f/4 | 38.3 cm | 2.57 m | ∞ | ∞ | ∞ | ∞ | 1.46 m |
| 8 mm | f/8 | 1.26 m | ∞ | ∞ | ∞ | ∞ | ∞ | 73.3 cm |
| 16 mm | f/1.8 | 3.8 cm | 15.4 cm | 63.0 cm | 1.47 m | 4.54 m | 38.7 m | 12.9 m |
| 16 mm | f/2.8 | 5.9 cm | 24.1 cm | 1.02 m | 2.48 m | 9.42 m | ∞ | 8.30 m |
| 16 mm | f/4 | 8.4 cm | 34.9 cm | 1.55 m | 4.20 m | 32.8 m | ∞ | 5.82 m |
| 16 mm | f/8 | 17.2 cm | 76.7 cm | 5.14 m | ∞ | ∞ | ∞ | 2.92 m |
| 27 mm | f/1.8 | 1.3 cm | 5.3 cm | 21.6 cm | 48.9 cm | 1.38 m | 5.87 m | 36.7 m |
| 27 mm | f/2.8 | 2.0 cm | 8.3 cm | 33.7 cm | 76.8 cm | 2.20 m | 10.3 m | 23.6 m |
| 27 mm | f/4 | 2.9 cm | 11.8 cm | 48.5 cm | 1.12 m | 3.31 m | 19.0 m | 16.5 m |
| 27 mm | f/8 | 5.7 cm | 23.9 cm | 1.01 m | 2.48 m | 9.44 m | ∞ | 8.29 m |
| 45 mm | f/1.8 | 0.4 cm | 1.9 cm | 7.7 cm | 17.4 cm | 48.7 cm | 1.97 m | 102 m |
| 45 mm | f/2.8 | 0.7 cm | 2.9 cm | 11.9 cm | 27.1 cm | 76.0 cm | 3.11 m | 65.6 m |
| 45 mm | f/4 | 1.0 cm | 4.2 cm | 17.1 cm | 38.8 cm | 1.09 m | 4.55 m | 45.9 m |
| 45 mm | f/8 | 2.0 cm | 8.3 cm | 34.3 cm | 78.6 cm | 2.26 m | 10.7 m | 23.0 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 |
|---|---|
| 5 mm (14 mm eq.) | 36.8 s |
| 7 mm (19 mm eq.) | 26.3 s |
| 9 mm (24 mm eq.) | 20.4 s |
| 13 mm (35 mm eq.) | 14.1 s |
| 18 mm (49 mm eq.) | 10.2 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 |
|---|---|---|---|
| 9 mm | 1/25 s | 0.3 s | 1.3 s |
| 18 mm | 1/50 s | 1/6 s | 0.6 s |
| 37 mm | 1/100 s | 1/13 s | 0.3 s |
| 74 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The Canon PowerShot G7 X Mark III 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 × 2.72.
Similar cameras#
Other 1" (one-inch) cameras from around the same time.
- Nikon 1 V1 2011
- Nikon 1 V3 2014
- Nikon 1 J5 2015
- Samsung NX mini
- Nikon 1 J1 2011
- Nikon 1 AW1 2013
- Nikon 1 S1 2013
- Sony Cyber-shot DSC-RX10 2013
- Nikon 1 S2 2014
- Panasonic Lumix DMC-FZ1000 2014
- Panasonic Lumix DMC-LX10 2016
- Panasonic Lumix DMC-FZ2500
Frequently asked questions#
What is the crop factor of the Canon PowerShot G7 X Mark III?
The Canon PowerShot G7 X Mark III has a crop factor of 2.72× relative to 35 mm full frame (diagonal 15.9 mm vs 43.3 mm).
What size is the Canon PowerShot G7 X Mark III sensor?
12.7 × 9.5 mm (1" (one-inch)), an area of 121 mm² — 14% of full frame.
Is the Canon PowerShot G7 X Mark III full frame?
No — its sensor is 1" (one-inch), which is 7.1× smaller in area than full frame.
How long can I expose the night sky with the Canon PowerShot G7 X Mark III?
With a 7 mm lens (19 mm equivalent) the 500 rule gives 26 s.
Sources & licences#
- Wikidata Q98729248 — CC0
- Lensfun camera database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources