We’ve all been there having a filter stuck tightly on the lens, or it’s been damaged and won’t come off cleanly. There are plenty of tools and tricks to help unscrew the filter, but a band saw has to be the most dangerous way of going about it.
Norman Chan, an editor with Tested, dropped his Canon 24-70mm f/2.8. It's a smashing lens, and not one that you’d want to chuck in the trash because of some minor damage. In a second time fixing it with Adam Savage, they’ve decided to mix things up. It’s worth noting that this time around it could have been worse as the filter glass wasn’t broken here.
Some people use a file, but Savage goes the whole nine yards and breaks out the big guns. An overreaction? Maybe, but it gets the job done. What’s really interesting about this video is the tool he’s attempting to use beforehand. This vice grip fits inside the lens filter, and looks as though it’s trying to straighten out where the filter might have become an oval. At the same time, Savage is trying to unscrew the filter with the grip he has from the vice.
For those less inclined to need a band saw, or a filter that doesn’t warrant buying a vice grip, you can try these handy plastic wrenches. Arguably less dangerous, and handy to keep around for the next time this happens. If you do need to go down the terrifying route, then rest assured that plenty of people have done the same, and it’s even endorsed by Canon.