Quote Originally Posted by cliveh View Post
No, I mean any camera, but can you explain why any SLR viewfinder is more accurate than that?

A view camera is the only real accurate camera based on your question. A rangefinder can not be as accurate as an slr due to the offset of the view finder in relation to the film frame.
If you were able to shoot macro with a rangefinder your could theoretically frame a subject but not capture it on film.