RicT
1-Apr-2009, 03:07
Good Day Forum Users
I have just acquired an old Goerz Red Dot Artar Lens (14"). The rear element of the lens looks as though the coating (or surface) has undergone degradation, causing an uneven film (that looks something like the scum that you sometimes see on stagnant water - (sorry best description I could think of). I have been able to remove the offending element and inspect it closely - it is one of the rear group. I was wondering if it would be possible to use some microfine abrasive paste and gentle polishing to remove the few molecules thickness on the surface that seem to be causing this - or would this completely destroy the lens- I am willing to give something a go because the lens is pretty well unusable at the moment.
Also the front part of the lens is extremely tight and so far I have not been able to remove it. Any suggestions on that one?
Regards,
Ric T
I have just acquired an old Goerz Red Dot Artar Lens (14"). The rear element of the lens looks as though the coating (or surface) has undergone degradation, causing an uneven film (that looks something like the scum that you sometimes see on stagnant water - (sorry best description I could think of). I have been able to remove the offending element and inspect it closely - it is one of the rear group. I was wondering if it would be possible to use some microfine abrasive paste and gentle polishing to remove the few molecules thickness on the surface that seem to be causing this - or would this completely destroy the lens- I am willing to give something a go because the lens is pretty well unusable at the moment.
Also the front part of the lens is extremely tight and so far I have not been able to remove it. Any suggestions on that one?
Regards,
Ric T