Crop factor & equivalence
Enter a focal length and aperture on one format and see what gives the same picture on another: same framing and the same depth of field.
How it works
Crop factor = the diagonal of full frame (43.3 mm) ÷ the diagonal of the sensor.
Equivalent focal length = focal length × crop factor. Equivalent aperture for the same depth of field (and the same total light) = f-number × crop factor. The exposure itself does not change: f/2 is f/2 for brightness on every sensor.
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More tools
How much is sharp: near and far limits, hyperfocal distance and how blurred the background gets.
Field of viewSee what a focal length takes in on your sensor, drawn on a scene, with the angle of view.
Diffraction limitFrom which f-number stopping down starts to soften your camera's pixels.
Handheld shutter speedThe slowest speed for sharp handheld photos with your focal length, sensor and stabilisation.