Foggy rangefinder window HELP

[jejuneje]

Help! I've got a iiif and this morning I went to take a photo and, unlike yesterday, the rangerfinder window was blurry. I can focus (more or less) but the image is not as crisp as usual. What's happened?
Thanks, Jonathan

[telewatt]

is something missing at the rangfinder-Ring you look through?..I had lost one time the last little lens at my old M6..

[doubice]

Jonathan,

Your IIIf has a diopter adjustment lever right next to the film rewind knob. I am quite sure that you accidentally moved it and that is why your rangefinder image seems blury.

The best way to adjust it is to sight through the rf window with your 'focusing' eye while keeping the other eye open as well. Move the adjustment lever back and forth slowly, until the image is sharp.

All the best,

Jan

[jejuneje]

Originally Posted by doubice

Jonathan,

Your IIIf has a diopter adjustment lever right next to the film rewind knob. I am quite sure that you accidentally moved it and that is why your rangefinder image seems blury.

The best way to adjust it is to sight through the rf window with your 'focusing' eye while keeping the other eye open as well. Move the adjustment lever back and forth slowly, until the image is sharp.

All the best,

Jan

Well, you're right and I'm embarrassed. My wife just looked at me like I'm a fool. Thanks for being kinder. I have no idea why, this time, I didn't adjust the lever. I've had to do it other times but today...panic set in.
Thanks again.
And thanks, telewatt.
Jonathan