crop factor - Robuta Search

https://www.discoverdigitalphotography.com/2013/what-is-crop-factor/

An explanation of the "crop factor" that is sometimes used when referring to certain digital cameras.

https://en.fotografmania.com/tag/crop-factor/

https://www.omnicalculator.com/other/crop-factor

The crop factor calculator tells you the effective focal length and aperture f-stop of your camera in terms of standard 35mm lenses.