Bob Salomon , May 28, 2001; 06:06 p.m.
The Linhof Multifocus Finder is currently made. It is a zoom type finder for focal lengths from 75 to 350mm (for 45) and accepts rotating masks for formats from 6x7cm to 4x5" including 612cm.
The current masks do not fit the older non zoom type finder. Those are the ones where the image size changes by moving the front and rear lenses apart rather then rotating a ring around the eyepiece.
A second ring corrects for parralax.