| Joined: | Sun Apr 1st, 2012 |
| Location: | South Lakeland, UK |
| Posts: | 4066 |
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What might do it is a cheap roller glass cutter, you should be able to get one from a market or hardware store. They usually have two notches one wider than the other, intended for nibbling small irregularities from the edge of glass. Suitably modified, by cutting off the Roller bit, just leaving the notch which is closest the thickness of the lens flange which is bent.
Placed over the bent bit and gently little by little, you should be able to tease it out so the lens will close.
You could of course just saw and file a slot in a piece of scrap metal. Using a thin piece of hard plastic like a bank card to protect the visible, black part of the lens. Something similar might do the filter flange. That would be my approach. I think ordinary pliers would make a lot of marks and I doubt if you could get them into the main problem area where the front slides into the rear of the lens.
Regarding the front flange, if it could be straightened enough to screw a filter adaptor in, then it were glued in that would get the job done at the front, in fact I think you can get equal 'adaptors' like 62-62mm, so you could retain a standard thread. Like this one.
https://www.ebay.co.uk/itm/62mm-62mm-62mm-to-62mm-62-62mm-Extend-Ring-Filter-Adapter-for-Camera-Lens/113676286297?hash=item1a77a27959:g:560AAOSwDd9Zda3i
You might have to cut a bit more off than I have shown but that sort of thing is standard kit for fine bending of metal like this. I used larger ones for wrought iron gates etc.
Attachment: Glass Cutter Tool.jpg (Downloaded 110 times)
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Robert.