Originally Posted by msvadi
I just received Bessa R3A and noticed that the rangefinder , the small central portion of the viewfinder, actually does not stay in the center, but rather moves to the upper left corner, as I decrease focus distance.
If you look really carefully, I'm pretty sure you'll find that the rangefinder patch stays put, and it's the bright frame lines surrounding it that move. That's how the camera compensates for parallax error -- the framelines shift diagonally as you focus closer.
It can be deceptive, because the surroundings of the finder are dark, so you don't have any point of reference to tell what's moving and what's staying still. One way to see it more easily is to hold the camera very still -- set it on a table, for example -- and look through the eyepiece with your eye several inches away. When you can see the outside of the camera for reference, it's easier to tell what moves and what doesn't.
Not all cameras work the same in this regard -- for example, in Fuji and Leningrad cameras, the rangefinder image stays still and the whole viewfinder image moves back and forth -- so it's certainly not
dumb to wonder what's going on! A lot of people wouldn't be observant enough to notice this.