Hi all,
I have a Schneider Symmar 150/5.6 convertible with slight haze in the rear element. I used a loupe to look at the lens surfaces, focusing progressively from the element nearest me to that furthest. The haze is definitely at some point between the external surfaces and appears as an overall swirl, like a cleaning mark.
It is entirely possible that this haze may not cause much loss of contrast, but if not too risky, I would like to clean it. Can anyone suggest a make/model of spanner wrench for the purpose of removing the element retaining ring? Can anyone suggest a procedure for doing this? I would imagine it safer to clamp the spanner in a vise and turn the lens element barrel by hand than visa versa.
Thanks,
Bookmarks