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11-01-2013, 10:28 AM   #1
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Circular or Linear polarizer on mirrorless?

Do I have to buy a CPL, or will just a regular PL work for my Q and K-01?

Seems to me with no PDAF a PL should do it, and they're cheaper...

Charles.

11-01-2013, 10:39 AM   #2
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That's a good question. I use a 46mm CPL on my NEX. It came with a lens purchase, but I never thought about CDAF not requiring a circular. I just checked a post on DPReview that confirms, but nothing concrete. It might even work with Sony's on sensor phase detection.
11-01-2013, 01:56 PM   #3
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Get a CPL.
11-04-2013, 05:21 PM   #4
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Is it true that linear polorizers cuts out more reflects than the circular ones?

11-04-2013, 10:26 PM   #5
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Seems to be the case. I got a linear PL, and it's considerably darker than all of my CPLs. It gives me much redder hues when shooting fall foliage than the CPLs do, so it appears that it is indeed more effective.

Charles.
11-28-2013, 01:07 AM   #6
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Do they still make linear polarizers? Any make/brand preference?
12-14-2013, 01:02 PM   #7
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When I first got into photography I use cheap polarizers (circular and Linear) and found that they produce fairly bad color shifts, not to mention optical clarity. The color shift with those cheap filters on a wide-angle lens was awful with the sky shifting from blue, to green to purple. The ones by Tiffen and Hoya are good to exceptionally good depending on which series you buy. I switched to Tiffen after my experience with the cheap Korean filter and there was no color shifting with the same wide-angle lens.

I currently use the Heliopan SH-PMC circular high transmission C-PL because it only cuts 1 stop of light while others are 2+ stops. The light transmission of the Heliopan with its 16-layers of multi-coated Schott glass is only 99.8%. There's zero color shift (not that it matters too much these days if you're shooting RAW) and no degradation in sharpness.
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