Specifications#
- Brand
- GoPro
- Model
- HERO4 Silver
- Camera type
- Action camera
- Sensor size
- 4.5 × 3.4 mm (1/3.2" sensor)
- Crop factor
- 7.66×
Specifications merged from Lensfun. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 7.66 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 | 31 mm | 58.9° | 45.9° | 70.5° |
| 4.5 mm | 34 mm | 53.3° | 41.3° | 64.2° |
| 5 mm | 38 mm | 48.6° | 37.5° | 58.9° |
| 6 mm | 46 mm | 41.3° | 31.5° | 50.4° |
| 8 mm | 61 mm | 31.5° | 23.9° | 38.9° |
| 10 mm | 77 mm | 25.5° | 19.2° | 31.5° |
| 12 mm | 92 mm | 21.3° | 16.1° | 26.5° |
| 15 mm | 115 mm | 17.1° | 12.9° | 21.3° |
| 20 mm | 153 mm | 12.9° | 9.7° | 16.1° |
| 25 mm | 191 mm | 10.3° | 7.8° | 12.9° |
| 30 mm | 230 mm | 8.6° | 6.5° | 10.8° |
| 40 mm | 306 mm | 6.5° | 4.9° | 8.1° |
| 50 mm | 383 mm | 5.2° | 3.9° | 6.5° |
| 70 mm | 536 mm | 3.7° | 2.8° | 4.6° |
| 100 mm | 766 mm | 2.6° | 1.9° | 3.2° |
| 150 mm | 1149 mm | 1.7° | 1.3° | 2.2° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 3.9 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 |
|---|---|---|---|---|---|---|---|---|
| 3 mm | f/2 | 53.2 cm | 7.04 m | ∞ | ∞ | ∞ | ∞ | 1.15 m |
| 3 mm | f/2.8 | 95.7 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 82.3 cm |
| 3 mm | f/4 | 3.45 m | ∞ | ∞ | ∞ | ∞ | ∞ | 57.7 cm |
| 3 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 29.0 cm |
| 6 mm | f/2 | 10.9 cm | 45.4 cm | 2.14 m | 6.79 m | ∞ | ∞ | 4.60 m |
| 6 mm | f/2.8 | 15.4 cm | 66.7 cm | 3.85 m | 32.6 m | ∞ | ∞ | 3.29 m |
| 6 mm | f/4 | 22.5 cm | 1.06 m | 14.1 m | ∞ | ∞ | ∞ | 2.30 m |
| 6 mm | f/8 | 52.8 cm | 6.89 m | ∞ | ∞ | ∞ | ∞ | 1.15 m |
| 10 mm | f/2 | 3.8 cm | 15.6 cm | 63.9 cm | 1.49 m | 4.62 m | 40.4 m | 12.8 m |
| 10 mm | f/2.8 | 5.4 cm | 22.0 cm | 91.7 cm | 2.21 m | 7.82 m | ∞ | 9.13 m |
| 10 mm | f/4 | 7.7 cm | 31.8 cm | 1.38 m | 3.60 m | 20.1 m | ∞ | 6.39 m |
| 10 mm | f/8 | 15.7 cm | 68.7 cm | 4.08 m | 46.1 m | ∞ | ∞ | 3.20 m |
| 17 mm | f/2 | 1.3 cm | 5.3 cm | 21.6 cm | 48.8 cm | 1.38 m | 5.84 m | 36.9 m |
| 17 mm | f/2.8 | 1.8 cm | 7.5 cm | 30.3 cm | 68.8 cm | 1.96 m | 8.85 m | 26.4 m |
| 17 mm | f/4 | 2.6 cm | 10.7 cm | 43.5 cm | 99.7 cm | 2.91 m | 15.3 m | 18.5 m |
| 17 mm | f/8 | 5.3 cm | 21.6 cm | 90.2 cm | 2.17 m | 7.63 m | ∞ | 9.24 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 (31 mm eq.) | 16.3 s |
| 5 mm (38 mm eq.) | 13.1 s |
| 6 mm (46 mm eq.) | 10.9 s |
| 7 mm (54 mm eq.) | 9.3 s |
| 8 mm (61 mm eq.) | 8.2 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 |
|---|---|---|---|
| 4 mm | 1/30 s | 1/4 s | 1 s |
| 7 mm | 1/50 s | 1/6 s | 0.6 s |
| 13 mm | 1/100 s | 1/13 s | 0.3 s |
| 26 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The GoPro HERO4 Silver 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 × 7.66.
Similar cameras#
Other 1/3.2" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the GoPro HERO4 Silver?
The GoPro HERO4 Silver has a crop factor of 7.66× relative to 35 mm full frame (diagonal 5.6 mm vs 43.3 mm).
What size is the GoPro HERO4 Silver sensor?
4.5 × 3.4 mm (1/3.2"), an area of 15 mm² — 2% of full frame.
Is the GoPro HERO4 Silver full frame?
No — its sensor is 1/3.2", which is 56.4× smaller in area than full frame.
How long can I expose the night sky with the GoPro HERO4 Silver?
With a 5 mm lens (38 mm equivalent) the 500 rule gives 13 s.
Sources & licences#
- Lensfun camera database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources