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Thread: Linear vs circular

  1. #1

    Default Linear vs circular

    Anyone care to comment the difference between linear and circular polarizer filter? How do you tell the physical difference? Thks.

    Rgds
    Thomas

  2. #2

  3. #3

    Default

    Thanks guy, i think i found my answer here http://www.geocities.com/cokinfilter.../polarizer.htm

    I think I will stick to my linear polarizer, works for me..

  4. #4
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    Default

    one thing i believe is AF doesn't work with linear on SLR.

    don't know if its mentioned in the link.

    jude

  5. #5
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    Default

    normally when you look at the rim of the filter it will say CIR-POL or C-POL or CirPol something to that effect. that will indicate a circular polariser.

    I've read that linear ones are cheap but will mess up with the AF systems that uses prism/split-beam (in the case of most DSLRs); something like the polarised light cannot get split properly and aligned abck.. i hvae never used linear filters so i cannot vouch if it's true. But I can vouch that Cir Pols AF properly becos I have used it with 1D, 20D, D70.

    More like since everyone says so, then I wun waste the money to buy a linear one to prove that it's correct (or wrong).
    “How fortunate for leaders that men do not think.” - Adolf Hitler

  6. #6

    Default

    any good circular polarizer in the market besides the Nikon which cost a bomb...

  7. #7
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    Plenty on the market, cheaper ones from Hoya and Cokin....

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