I think that my FM2 is back focusing. How to fix?

[yessammassey]

I had a similar issue with my FE2. After changing the focusing screen didn't solve the problem, I adjusted the spring tension of the pressure plate. Now it appears to be spot-on.

That's good, and definitely good info for the OP.

I swapped out the whole back on mine with one from a known good FE2, and the issue persisted.

I think my camera was cursed.

 

[ic-racer]

If the pressure plate were not contacting the rails, the film would be behind the intended focal plane. The negatives would have shown the focus to be in-front of the subject.

 

[rpavich]

I had a similar issue with my FE2. After changing the focusing screen didn't solve the problem, I adjusted the spring tension of the pressure plate. Now it appears to be spot-on.

Thats my last resort, ill try that.

 

[rpavich]

Thats my last resort, ill try that.

Just got done with the test; unsuccessful. The problem remains. Off to my camera tinkering buddie's house it goes.

 

[rpavich]

If the pressure plate were not contacting the rails, the film would be behind the intended focal plane. The negatives would have shown the focus to be in-front of the subject.

Actually, it is. I goofed by calling it back focusing.

 

[nyoung]

There is a tiny spring that can break in the mirror return/rebound mechanism on the FM/FE series. If broken, mirror does not return to its proper position.