Jim C.
6-Sep-2012, 18:49
Guess this is the place for this question, since it's a DIY.
I took delivery of a nice old brass lens, supposedly a petzval, took a quick look and
shot some fujiroids but there was no joy in swirly land, very nice bokeh tho.
The rear elements can be taken out easily ( uh-oh ! ) the front element is easy to get off ( uh-oh again ! )
but it's tough to get the glass element retaining ring off but that's not the issue.
Whomever owned the lens apparently tried to remove the ring that holds
the aperture blades in place, the reason for the uh-oh's.
I guess they were trying to repair the blades, two seem to be out of it's pivots.
The ring is ever so slightly skewed and you can feel the bump that was left from
the tool they tried to pry it out with.
The ring seems ok, not mangled by their attempt, so I guess if I tap it back to square I'm OK.
My question is what was the technique used by anyone who has attempted to remove this ring ?
I took delivery of a nice old brass lens, supposedly a petzval, took a quick look and
shot some fujiroids but there was no joy in swirly land, very nice bokeh tho.
The rear elements can be taken out easily ( uh-oh ! ) the front element is easy to get off ( uh-oh again ! )
but it's tough to get the glass element retaining ring off but that's not the issue.
Whomever owned the lens apparently tried to remove the ring that holds
the aperture blades in place, the reason for the uh-oh's.
I guess they were trying to repair the blades, two seem to be out of it's pivots.
The ring is ever so slightly skewed and you can feel the bump that was left from
the tool they tried to pry it out with.
The ring seems ok, not mangled by their attempt, so I guess if I tap it back to square I'm OK.
My question is what was the technique used by anyone who has attempted to remove this ring ?