Convert a lens focal length to its full-frame (35mm) equivalent using crop factor.
A smaller sensor crops the image circle, so a lens appears longer than it would on full frame by the crop factor. Crop factor lets photographers compare fields of view across sensor sizes and choose the right lens for the desired framing.
35mm Equivalent Focal Length
Equiv focal length = focal length x crop factor
Equiv focal length = focal length x crop factor A smaller sensor crops the image circle, so a lens appears longer than it would on full frame by the crop factor.
Crop factor lets photographers compare fields of view across sensor sizes and choose the right lens for the desired framing.
This calculator takes 2 inputs: Focal length, Crop factor. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.