[toni-a]

Equivalence is not a can of worms, just a basic understanding op optics and physics


In equivalence terms, this lens is equivalent to a 7.5 x 2 = 15mm, 2 x 2 = f4 lens on FF 135 format, and equivalent to a 7.5 x 1.5 = 11mm, 2 x 1.5 = f3 lens on 1.5x crop APS-C format.


Just a can of common sense :lol:

Sorry Wim, believe me that was not intentional.