Looking at some camera metadata on Windows
File Properties there are (along with a few more) two
Properties named Focal length and 35mm focal length.
I'm developing software that will make use of these two
Properties. So far I have created a
FocalLength for the first, but I cannot seem to find a proper name for the other one.
I have thought of
ThirtyFiveMmFocalLength, but I think there might be a better suggestion.