I have always used the left eye to look at the viewfinder of my dslr. I am right-handed, and wear glasses (even when using the camera, I am rather stronly myopic and relatively mildy astigmatic). I am ...
I have watched videos on YouTube showing the view through the M9 viewfinder, and it appears that only a small window in the middle allows you to focus. However, I once tried out an old Voigtländer ...
I've seen rangefinder cameras around and idly wondered what the difference was between them and SLR cameras. Are there any advantages rangefinders offer that cannot be reproduced using an SLR?