Re: Remove lens from board
If it were mine, I would remove the rear lens group, then score around the outside edge of the retaining ring with an x-acto knife, and try to loosen the retaining ring with a lens spanner...if still glued, I'd moisten (not drown) a q-tip with acetone or naphtha and run it around the perimeter of the retaining ring and let it soak in a bit, then try again.
Re: Remove lens from board
I always make sure the shutter and aperture blades are wide open
One slip and they are trash
Wear safety googles too, just in case
Re: Remove lens from board
Quote:
Originally Posted by
Tin Can
I always make sure the shutter and aperture blades are wide open
One slip and they are trash
Wear safety googles too, just in case
Good advice on all counts. I was beating on a center punch with a 20 oz ball peen hammer the other day. The punch went boing, still haven't found it, had my face shield on. Shouldn't have to remind people to not be stupid, but I have a sign in my darkroom to wear eye protection when mixing chemicals
Re: Remove lens from board
Pull off the front and rear lens groups, open the aperture wide open, lock the shutter open. If it's really just paint, you could apply a gel paint remover with a Q tip. Buy a lens spanner. I have a Japan Hobby lens wrench works great.
You could chip at it with a sharp wood chisel or a knife. Don't wrench to hard on the shutter or you will break something.
Sounds like a mess.
Re: Remove lens from board
If it really won't budge then it can always be cut off using a very small cutter in a mini-drill (Dremel or similar) but obviously the retaining ring will be destroyed. Another solution might be to go around the ring with a soldering iron to expand it sufficiently to 'crack the paint progressively around it - I've done this on various things but not lenses, so its merely a suggestion which can be considered (no doubt others will say its crazy but it depends on how careful you can be and what risks you want to take).
Re: Remove lens from board
If the shutter will unscrew from the ring, remove it so you can attack the ring from front and back.