How does it work for Drone photography? for example the Mavic 2 pro (l1d-20c) has a "1" sensor " 13.2mm x 8.8mm and a focal length of 10.3mm according to the web and the exif data
How can i calculate these ??
Set film width to 13.2mm (or 8.8mm if you are recording in portrait mode - but I hope you aren't :D ).
I doubt that 10.3mm is the correct number for focal length, so most likely you will need to convert it. I used this tool:
https://mmcalc.com/customThe resulting number is 27.3.
This seems to be confirmed by the info I found online when searching for l1d-20c: field of view ~77 deg, focal length 35 mm equivalent: 28 mm