Originally posted by Zeroset Not sure (without looking), but I don't think it matters anyway, if that's in regards to the freezer idea.
If plastic, a series of cooling and returns to room temperature might loosen the filter. I wouldn't try loosening the filter until maybe 10-30 cycles. Maybe even room temperature to 100 degrees F with an electric heating pad to swell the metal in the filter a little.
The over tightening would either compress the plastic or cut threads. By expanding and contracting the metal repetitively, you might get the filter to work itself out a little, just by wearing down the plastic. If plastic, just leaving it alone for a year might end up with the issue resolving itself. Going from AC 70 degrees F to 100 degrees F summer weather, or heated interior 70 degrees to 45 degrees winter weather enough times might just do it. Or even the movement of the lens in the bag, small vibrations, knocks against other lenses, ...
Tight metal on metal might end up with some bonding and won't work itself out.
If plastic, I might just leave it alone.