I'll comment here, not because I'm looking to sell more filters, but because I partially disagree with djgoogone's post. I don't think the cheap plastic filters are any more of a pain to install or have any increased chance of trapping dirt or dust in the field than any screw on aftermarket nd filter. Can it happen in those conditions? Absolutely! But not any easier than the polar pro which cost a lot more. My only issue with the cheap plastic filters (that I produce) is you have to be more attentive to avoid fingerprints on the filter.
Solution, I wear a nitrile glove. Granted, that is a bit of a pain in the ***, it's much less of a pain than paying $189 for what i can do for $13.50. I'll stick with my nitrile glove and keep my money in the bank, but hey, to each his own!
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