Custom cap for B+W Slim Polarizer
I got this polarizer from a small store in my area, but never thought that it didn't have a front thread where to attach the lens cap.
The polarizer is supplied with a cap that attaches externally just by pressure. Unfortunately the pressure is so small that the cap is taken off by itself all the time.
(Hope you understand the problem, sorry for the bad English)
Do you know any custom cap to protect this filter? A deeper cap would be sufficient, I guess.
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