Rendy
Member
I just got a Zeiss 18mm zm for my M8.2. Because the equivalent focal length is about 24mm (18*1.33), I thought I would need a 24mm viewfinder. Since I already have a Zeiss 21mm viewfinder, I thought I could just use it to estimate the 24mm view. I took several pictures 5 meters out and compare the view with LCD screen. Guess what....it is right on. 🙂