I didn't have a diopter in it when I first checked it, but it didn't really make a difference as I still have to push my whole face in to it to see the whole screen.
On a side note, the stock focus screen (which constantly gets dirty) is next to useless with slower lenses (28 3.5), as the split rangefinder blacks out.
Don't take this personally George, but your thread title absolutely demands this response:
"Perhaps you have tunnel vision?"
I will now retire, feeling guilty.
....
On a side note, the stock focus screen (which constantly gets dirty) is next to useless with slower lenses (28 3.5), as the split rangefinder blacks out.