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Field Tools

Camera

Use the camera tools to estimate hyperfocal distance for broad depth of field and convert equivalent focal lengths across different sensor formats.

Hyperfocal distance

5.14 m

With a 35 mm lens at f/8 on full frame, focus at 5.14 m to keep depth of field extending from roughly half that distance to infinity.

H = f² / (N × c) + f

`f` is focal length in mm, `N` is the f-number, and `c` is the circle of confusion in mm.

Equivalent focal length

Convert a focal length between common sensor sizes using crop factor.

Equivalent focal length

52.5 mm

A 35 mm lens on APS-C / Super 35 gives the same angle of view as a 52.5 mm lens on full frame.

Equivalent focal length = focal length × (target crop factor / source crop factor)

Crop factor compares a sensor's angle of view to full frame. This conversion only changes framing equivalence, not the physical focal length of the lens.