Depth of field: RED Komodo 6K
The RED Komodo 6K uses a Super 35 6K sensor at 27.03 × 14.26 mm — which fixes the circle of confusion at 0.027 mm, and from that every depth-of-field number on this page. Example: 50 mm at T2.8 focused at 2 m gives 0.24 m of usable depth (1.89 m to 2.13 m). The calculator above is preset to the RED Komodo 6K. Because depth of field depends on sensor geometry alone, every number on this page applies unchanged to the RED Komodo-X and the Blackmagic URSA Mini Pro 12K.
Depth of Field Calculator
- Near limit
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- Far limit
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- Total depth
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- Hyperfocal
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- FoV / frame width
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Circle of confusion per camera derives from sensor width (d/1000 convention). Camera list: nominal manufacturer specs.
Hyperfocal distance on the RED Komodo 6K
The table is exact for this sensor: the same focal length and stop give different numbers on a camera with a different sensor size — depth of field is a sensor property, not a lens property.
| Focal length | T1.4 | T2 | T2.8 | T4 | T5.6 |
|---|---|---|---|---|---|
| 18 mm | 8.6 | 6.0 | 4.3 | 3.0 | 2.2 |
| 25 mm | 16.6 | 11.6 | 8.3 | 5.8 | 4.2 |
| 35 mm | 32.4 | 22.7 | 16.2 | 11.4 | 8.1 |
| 50 mm | 66.2 | 46.3 | 33.1 | 23.2 | 16.6 |
| 85 mm | 191.2 | 133.9 | 95.7 | 67.0 | 47.9 |
Depth of field at interview distance (2 m)
The interview question in numbers: how much room does the subject have in front of the RED Komodo 6K before drifting out of focus?
| Focal length | T1.4 | T2 | T2.8 | T4 | T5.6 |
|---|---|---|---|---|---|
| 35 mm | 0.24 m | 0.35 m | 0.49 m | 0.71 m | 1.03 m |
| 50 mm | 0.12 m | 0.17 m | 0.24 m | 0.34 m | 0.48 m |
| 85 mm | 0.04 m | 0.06 m | 0.08 m | 0.11 m | 0.16 m |
Working with it on set
Recording at 6144 × 3240, large-screen 4K delivery judges focus more harshly than the table: for critical work, halve the circle of confusion mentally — the 0.24 m at 50 mm/T2.8/2 m becomes half that. The table follows the classical cinema convention.
In pre-production the number belongs in the shot list: a shot planned at T1.4 on 85 mm needs a focus puller and time — both of which belong in the schedule before they are missing on set.
Frequently asked
What circle of confusion does the RED Komodo 6K use?
0.027 mm — following the usual sensor-width ÷ 1000 convention (27.03 mm ÷ 1000, rounded). Every table on this page uses it.
Do the numbers hold for any lens?
Yes — depth of field depends on focal length, stop, distance and sensor, not the lens model. What differs between lenses is bokeh (how the blur looks), not where it starts.