Can someone tell me what happens when you put a very wide lens on a range finder.
For example a 15mm lens on a Zeiss Ikon. I realise the standard finder does not have frame lines for the lens and you need a special view finder for the wide lens, but what about focussing? Does the focus in the built in viewfinder work for the wide lens or do you just rely on short focal length having very great DOF and set hyperfocal distance for your chosen aperture?