Archived posting to the Leica Users Group, 1999/06/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Sun, 06 Jun 1999 09:04:44 +0100, you wrote: >Paul Chefurka wrote: > >> I use a 35 on an M4 and I'm very happy with >> it. I think the frame lines are as accurate as they can be, given that >> their coverage doesn't change as you focus closer. > >> I believe that the >> frame lines are accurate at close focus, and the framing gets >> progressively "looser" as focus approaches infinity - but by how much, >> I can't say. >> > >Paul, >The first statement you make is not correct, the framelines move (as all >M >framelines do) and therefore change the 'coverage' when the lens is >focused. >Check again, watching the outside edges of the viewfinder itself and >you'll >see the framelines move down and towards the right as you focus closer. We're talking about two different things here. What you're describing is parallax correction. The kind of "change" I was referring to is the changing of the angle of view within the frame lines themselves - expanding or shrinking the box as the focus changes, not just changing its position in the field of view. This is something the Leica viewfinder can't do, as the frame lines are projected by a fixed mask. The result is that Leica had to pick one focussing position to get accurate framing, and they logically chose the closest point. You can always crop to make up for the looser framing at infinity. Sorry I wasn't clear on what I meant. Paul