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Old Aug 28, 2011, 6:01 PM   #1
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Default Stuck Polarizer on lens

As a further adventure out in PEI, I screwed on a polarizer filter onto my 40-150. Made sure not to cross the threads, and not to overly tighten. Finish the day and try to unscrew the filter and no joy. It will not budge.

Any suggestions as to removal without damaging the lens? My brother-in-law offered me the use of his adjustable plumber's wrench
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Old Aug 28, 2011, 6:23 PM   #2
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....be sure you are not gripping the filter too tightly. Try light finger & thumb pressure to the flat plane serrations. Squeeze gripping can distort the circular and increase thread torque........ The more you 'squeeze twist' the tighter the thread torque lock becomes.
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Old Aug 28, 2011, 6:45 PM   #3
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Default Filter wrench

If all else fails, you can get a filter wrench.

Link:http://www.amazon.com/Camera-Filter-.../dp/B0056483JK
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Old Aug 29, 2011, 4:08 PM   #4
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G'day KC

Things like this have happened to me often over the years
Several possible solutions ...

1- hit lens with big, heavy hammer, rescue filter, buy new lens [only kidding]
2- use a "Jeweller's Screwdriver" very carefully by placing the driver-head of the shaft into one of the finger-grooves, and gently tap the 'top' end of the screwdriver to disengage the thread

Regards, Phil
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Old Aug 29, 2011, 11:00 PM   #5
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Thanks all for the suggestions

Have not had a chance to get back to the lens. The serrations on the mount half of the filter are very fine and the entire filter is far narrower than the hardy ones I used in years past -- there is almost nothing to grasp. Can't figure out how I managed to get enough twist on the filter to manage locking it up. I think I will have to go with the filter wrench or make up something similar.
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Old Aug 29, 2011, 11:10 PM   #6
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just the nature motion of the lens focusing can cause the filter to tighten down, filter wrench is your best option.
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Old Aug 30, 2011, 8:04 AM   #7
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Default Stuck polarizer

You might try texturized rubber kitchen gloves- or one of these pebble-textured round discs meant for gripping jar lids... Good luck!
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Old Sep 5, 2011, 10:41 PM   #8
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Stuck no more!

I was sitting down looking at the lens and polarizer thinking of the best way to tackle the stuck filter. And as I was thinking, I started to lightly play with the serrations as Bob mentioned. And to my surprise, it unscrewed without any effort. My gorrilla efforts were for naught, going with Bob's light touch won the day.

A thought -- could difference in temperature have anything to do with the release. The metal of the filter screwed into the plastic of the lens?
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Old Sep 6, 2011, 12:30 PM   #9
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....hey, glad you got the filter off. Temperature likely had no affect, the 'light touch' often works in those situation where grip distortion is possible.
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