Hi all,
I just got an Apo-Nikkor 480/f9. What a sweet lens! There is a spot of dirt.... looks about 1/2 the size of a grain of rice, right in the inside middle of the rear element. I tried to unscrew the rear and it does not want to come loose. How do you get into this lens?
On the rear of the rear element are 2 small holes for a pin wrench. I that the trick?
thanks
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