Linear vs circular


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judeseah

New Member
Jan 20, 2005
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#4
one thing i believe is AF doesn't work with linear on SLR.

don't know if its mentioned in the link.

jude
 

yanyewkay

Senior Member
Sep 22, 2004
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Cons digger.
#5
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).
 

TME

Senior Member
Jan 19, 2002
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Clementi
#7
Plenty on the market, cheaper ones from Hoya and Cokin....
 

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