Lens planner
Depth of field on the Blackmagic Pocket Cinema 4K
Depth of field, angle of view and shot sizes for the Blackmagic Pocket Cinema 4K, computed for its Micro Four Thirds 4K sensor. The planner below is set to this camera — change lens, stop and distance for your shot.
- acceptably sharp
- focus plane
- horizontal field of view
- Near limit
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- Far limit
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- Depth of field
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- In front / behind
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- Hyperfocal distance
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- Shot size
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| Lens | Near | Far | Depth | H. FoV | Shot size |
|---|
A 1.80 m person at the focus distance, eyes on the upper third. Grey floor = below their feet.
- Horizontal angle
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- Vertical angle
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- Diagonal angle
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- Frame width at distance
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- Frame height at distance
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- Full-frame equivalent
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Uses the focus distance on the left as the space you have between camera and subject.
| Lens | Distance for this shot size | Depth there | At your distance |
|---|
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The Blackmagic Pocket Cinema 4K sensor in numbers
Micro Four Thirds 4K: 18.96 × 10.00 mm, diagonal 21.4 mm. The tables below use a circle of confusion of 0.019 mm (sensor width ÷ 1000) and a 16:9 image taken from the full sensor width, 17.80 × 10.00 mm. A 50 mm lens frames like a 101 mm lens on full frame (factor 2.02).
Lens sets from our list that cover the full 21.4 mm diagonal: ARRI Signature Prime, ARRI/Zeiss Master Prime, ARRI/Zeiss Ultra Prime, Zeiss Supreme Prime, Zeiss CP.3, Cooke S4/i, Cooke S7/i Full Frame Plus, Sigma Cine Prime FF, Canon CN-E Prime, Leitz Summicron-C, Tokina Vista Prime, DZOFilm Pictor Zoom.
Up to 60 fps in the manufacturer’s spec — at high frame rates many cameras crop the sensor, which narrows the angle of view; check the recording mode and enter its active area as a custom sensor.
Depth of field on the Blackmagic Pocket Cinema 4K at T2.8
Total depth of field (near to far limit) at three working distances. Example: 50 mm at 3 m holds 2.82 m to 3.2 m.
| Focal length | at 1.5 m | at 3.0 m | at 6.0 m |
|---|---|---|---|
| 18 mm | 78 cm | 3.86 m | 334.6 m |
| 25 mm | 38 cm | 1.62 m | 8.23 m |
| 35 mm | 19 cm | 79 cm | 3.33 m |
| 50 mm | 9.3 cm | 38 cm | 1.54 m |
| 85 mm | 3.1 cm | 13 cm | 52 cm |
| 135 mm | 1.2 cm | 5.0 cm | 21 cm |
Field of view and shot size
What each focal length sees in 16:9 on this sensor, and what that makes of a standing person 3 m away.
| Focal length | Horizontal angle | Frame width at 3 m | Shot size at 3 m | Full-frame equivalent |
|---|---|---|---|---|
| 18 mm | 52.6° | 2.97 m | full shot | 36 mm |
| 25 mm | 39.2° | 2.14 m | medium long shot | 51 mm |
| 35 mm | 28.5° | 1.53 m | medium shot | 71 mm |
| 50 mm | 20.2° | 1.07 m | medium close-up | 101 mm |
| 85 mm | 12.0° | 63 cm | close-up | 172 mm |
| 135 mm | 7.5° | 40 cm | extreme close-up | 273 mm |
Hyperfocal distance
Focus at the hyperfocal distance and everything from half that distance to infinity is acceptably sharp. On the Blackmagic Pocket Cinema 4K at T5.6: 5.9 m for 25 mm, 23.5 m for 50 mm.
| Focal length | T2.8 | T5.6 | T11 |
|---|---|---|---|
| 18 mm | 6.11 m | 3.06 m | 1.57 m |
| 25 mm | 11.8 m | 5.9 m | 3.02 m |
| 35 mm | 23.1 m | 11.5 m | 5.9 m |
| 50 mm | 47 m | 23.5 m | 12 m |
| 85 mm | 135.9 m | 68 m | 34.7 m |
| 135 mm | 342.7 m | 171.4 m | 87.3 m |
Frequently asked
What circle of confusion should I use for the Blackmagic Pocket Cinema 4K?
0.019 mm follows the cinema convention of sensor width ÷ 1000. For 4K delivery on large screens, or when you judge focus on a big monitor, ÷ 1500 (0.013 mm) is safer — the tool’s “strict” switch does that.
How much depth of field does a 50 mm at T2.8 give on the Blackmagic Pocket Cinema 4K?
At 3 m: 38 cm (2.82 m to 3.2 m). At 1.5 m it shrinks to 9.3 cm.