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Canon 24-70mm f/2.8L with cracked filter stuck on lense. Any ideas to remove?

Started May 22, 2013 | Questions thread
Andy Blanchard Senior Member • Posts: 1,349
Re: Canon 24-70mm f/2.8L with cracked filter stuck on lense. Any ideas to remove?

tonyjr wrote:

I used a pair of long nose pliers to bend back , then a coping saw to slot the filter in several places - 1/8 inch wide - then bend back and forth till it breaks out a piece

A firm, even pressure all the way around the filter applied with a strip of rubber, or one of those bottle top remover tools is the first thing to try.  If you apply too much pressure though, then you will be clamping the filter on even more and it won't turn, so don't over torque it.

If that doesn't work, then a fine saw and a pair of needle nose pliers is the way to go, just as Tony suggested.  Select a part of the filter where the glass is still intact, then carefully (I'm sure I didn't need to say that!) saw two notches in the filter ring about 1cm or so apart.  You need to cut as deeply into the filter as you can without sawing into the lens, then work it back and forth until it comes apart.  After that it's just a matter of unpeeling the ring and letting the broken filter glass fall away so it doesn't scratch the front element of the lens.

Andy

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