Filter Glass moves

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Name
Simon
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Hi

Has anyone suffered from having the glass within a filter move when touched?

I was cleaning the filter, which is a Hoya 77m pro, and found that the glass moved on one side when pressed. I'm assuming that this shoudn't happen and I should replace it. I would estimate it is moving about 1mm on one side, but not at all on the other.

Anyone else suffered from this and is it likely to cause any problems.

thanks.
 
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