Lens Equivalent Calculator
Want to know what lens in needed on your medium format camera to match the look you get on 35mm with a 50mm lens? Use this calculator to compare how different lenses for different formats see the world.
Lens equivalent calculator
Moving between formats? Find the focal length that gives the same field of view on any film size, from half frame to 8×10.
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The same view on every format:
| Format | Lens | Frame size |
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Matched on the frame diagonal. Formats with different shapes (like square 6×6 against 3:2 35mm) won't crop identically, so compare the horizontal and vertical angles too.