Specifications#
- Brand
- GoPro
- Model
- HERO4 Black
- Camera type
- Action camera
- Sensor size
- 6.9 × 5.2 mm (1/1.7" sensor)
- Crop factor
- 5.00×
Specifications merged from Lensfun. Spot an error? Tell us.
Sensor size compared#
Focal length equivalents & field of view#
Multiply any focal length by 5.00 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 | 20 mm | 81.7° | 65.9° | 94.5° |
| 4.5 mm | 23 mm | 75.1° | 59.9° | 87.7° |
| 5 mm | 25 mm | 69.4° | 54.9° | 81.7° |
| 6 mm | 30 mm | 59.9° | 46.8° | 71.6° |
| 8 mm | 40 mm | 46.8° | 35.9° | 56.8° |
| 10 mm | 50 mm | 38.2° | 29.1° | 46.8° |
| 12 mm | 60 mm | 32.2° | 24.4° | 39.6° |
| 15 mm | 75 mm | 26.0° | 19.6° | 32.2° |
| 20 mm | 100 mm | 19.6° | 14.8° | 24.4° |
| 25 mm | 125 mm | 15.8° | 11.9° | 19.6° |
| 30 mm | 150 mm | 13.2° | 9.9° | 16.4° |
| 40 mm | 200 mm | 9.9° | 7.4° | 12.3° |
| 50 mm | 250 mm | 7.9° | 5.9° | 9.9° |
| 70 mm | 350 mm | 5.7° | 4.2° | 7.1° |
| 100 mm | 500 mm | 4.0° | 3.0° | 5.0° |
| 150 mm | 750 mm | 2.6° | 2.0° | 3.3° |
Depth of field table#
Total depth of field at each subject distance, using a circle of confusion of 6.0 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 |
|---|---|---|---|---|---|---|---|---|
| 4 mm | f/2 | 43.2 cm | 3.38 m | ∞ | ∞ | ∞ | ∞ | 1.34 m |
| 4 mm | f/2.8 | 71.4 cm | ∞ | ∞ | ∞ | ∞ | ∞ | 95.7 cm |
| 4 mm | f/4 | 1.66 m | ∞ | ∞ | ∞ | ∞ | ∞ | 67.1 cm |
| 4 mm | f/8 | ∞ | ∞ | ∞ | ∞ | ∞ | ∞ | 33.7 cm |
| 9 mm | f/2 | 7.3 cm | 30.0 cm | 1.29 m | 3.31 m | 16.3 m | ∞ | 6.76 m |
| 9 mm | f/2.8 | 10.3 cm | 42.9 cm | 1.99 m | 6.05 m | ∞ | ∞ | 4.83 m |
| 9 mm | f/4 | 14.9 cm | 64.2 cm | 3.62 m | 24.7 m | ∞ | ∞ | 3.39 m |
| 9 mm | f/8 | 31.8 cm | 1.79 m | ∞ | ∞ | ∞ | ∞ | 1.70 m |
| 15 mm | f/2 | 2.6 cm | 10.5 cm | 42.8 cm | 98.0 cm | 2.86 m | 14.9 m | 18.8 m |
| 15 mm | f/2.8 | 3.6 cm | 14.8 cm | 60.6 cm | 1.41 m | 4.32 m | 33.5 m | 13.4 m |
| 15 mm | f/4 | 5.2 cm | 21.2 cm | 88.6 cm | 2.12 m | 7.41 m | ∞ | 9.39 m |
| 15 mm | f/8 | 10.5 cm | 43.9 cm | 2.06 m | 6.42 m | ∞ | ∞ | 4.70 m |
| 25 mm | f/2 | 0.9 cm | 3.7 cm | 15.2 cm | 34.4 cm | 96.4 cm | 3.97 m | 52.1 m |
| 25 mm | f/2.8 | 1.3 cm | 5.2 cm | 21.3 cm | 48.3 cm | 1.36 m | 5.78 m | 37.2 m |
| 25 mm | f/4 | 1.8 cm | 7.5 cm | 30.5 cm | 69.4 cm | 1.98 m | 8.97 m | 26.1 m |
| 25 mm | f/8 | 3.7 cm | 15.1 cm | 62.1 cm | 1.45 m | 4.47 m | 37.0 m | 13.1 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 (20 mm eq.) | 25.0 s |
| 5 mm (25 mm eq.) | 20.0 s |
| 6 mm (30 mm eq.) | 16.7 s |
| 7 mm (35 mm eq.) | 14.3 s |
| 10 mm (50 mm eq.) | 10.0 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 |
| 10 mm | 1/50 s | 1/6 s | 0.6 s |
| 20 mm | 1/100 s | 1/13 s | 0.3 s |
| 40 mm | 1/200 s | 1/25 s | 1/6 s |
Lens#
The GoPro HERO4 Black 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 × 5.00.
Similar cameras#
Other 1/1.7" cameras from around the same time.
Frequently asked questions#
What is the crop factor of the GoPro HERO4 Black?
The GoPro HERO4 Black has a crop factor of 5.00× relative to 35 mm full frame (diagonal 8.7 mm vs 43.3 mm).
What size is the GoPro HERO4 Black sensor?
6.9 × 5.2 mm (1/1.7"), an area of 36 mm² — 4% of full frame.
Is the GoPro HERO4 Black full frame?
No — its sensor is 1/1.7", which is 24.1× smaller in area than full frame.
How long can I expose the night sky with the GoPro HERO4 Black?
With a 5 mm lens (25 mm equivalent) the 500 rule gives 20 s.
Sources & licences#
- Lensfun camera database — CC BY-SA 3.0
Last updated October 03, 2026 · How we calculate · Sources