All SLR's with 100% viewfinder are most accurate as you can see corner to corner of what will exactly show up on film with any lens. Of these I know it included the Nikons F, F2, F3, Canons 1, 1V. There may be others. All other SLRs show a smaller percentage coverage that vary from model to model.
In the Leica M2 manual page 9 the example shows what is visible in the rangefinder and you can see it is not exactly corner to corner accuracy as in the 100% viewfinder SLRs.
Last edited by Les Sarile; 02-07-2013 at 06:01 PM. Click to view previous post history.