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12-20-2020, 11:56 AM - 1 Like   #16
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QuoteOriginally posted by barondla Quote
You are correct, it doesn't seem to affect the meter much, if at all, on the 645Z. Wouldn't a linear polarizer theoretically have better optical quality since it has 1 less optical element?

Thanks,
barondla

Still amazed that a filter wears out. Do other filters?
Theoretically, probably yes. I expect in practice, probably not.
Having said that, a cheap material circular polarizing filter, like any cheap filter, will have a more detrimental effect on the image than a more expensive one made with better glass and polarizing screen.
I've bought Breakthrough polirizers for my *50 and *85 lenses. Stupid expensive, but they don't degrade image quality at all.
I expect any filter that is using some sort of dye could fade over time.

12-21-2020, 05:44 AM - 1 Like   #17
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My polarizing filter Ray Bans see 1000 times more direct sunlight than any filter I own. Never heard of sunglass lenses breaking down before the frames though.
12-21-2020, 12:42 PM - 1 Like   #18
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QuoteOriginally posted by EnglishBob Quote
My polarizing filter Ray Bans see 1000 times more direct sunlight than any filter I own. Never heard of sunglass lenses breaking down before the frames though.
There are a variety of methods of polarizing light so it could be complicated to compare several polarizing devices:Physics Tutorial: Polarization
12-22-2020, 05:24 AM - 1 Like   #19
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QuoteOriginally posted by tryphon4 Quote
There are a variety of methods of polarizing light so it could be complicated to compare several polarizing devices:Physics Tutorial: Polarization
Entropy always wins

12-22-2020, 11:04 AM - 1 Like   #20
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Yes, entropy cannot decrease. Isaac Asimov wrote an interesting novel about this subject.
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