Chosen Solution
My lens protector in my camera canon T5 won’t open it is like it was locked. How to make the lens protector open again?
Pretty simple, actually. To get more grip, take a pair of thick rubber bands and put one around it, that will help grip the very thin part of the polarizer that has the knurling. Gently twist the filters, grabbing at different parts of the ring to even out the distortion (key word: GENTLY). A little push in and out (not rotation) can help dislodge any grit that managed to get in between the lens and the lens protector.
