If not mistaken, this is the 12-blade diaphragm version. How similar or more difficult is it to repair the 14-blade one? Then the 3 springs you show are for what purpose? The last question, if you care to answer, I have one that has stopped focusing totally. Where should I expect the problem to be?
If not mistaken, this is the 12-blade diaphragm version. How similar or more difficult is it to repair the 14-blade one? Then the 3 springs you show are for what purpose?
The last question, if you care to answer, I have one that has stopped focusing totally. Where should I expect the problem to be?