Mark Barnes
4-Jun-2007, 15:00
The aperture blades in the barrel of my 14" lens are stuck at wide open (f9). I used contact cleaner but they refuse to budge. The lens is a 14" apo geragon. It is a modern lens and barrel. I noticed that the f stop numbers have disappeared (the contact cleaner I'm sure). I wish to regain full aperture use. I am looking for suggestions on how to resolve this problem