Linear v Circular polarizers

Started Feb 2, 2013 | Discussions thread
tt321
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Re: Linear v Circular polarizers
In reply to Big Ga, Feb 3, 2013

Big Ga wrote:

micksh6 wrote:

PDAF focus can't work with Linear PL. Quality-wise I doubt one will find a difference easily. Just don't buy crap polarizers. The only good linear PL vendor left is B+W, AFAIK. Because of that you won't get linear PL cheaper than good enough circular. I bought linear to combine with circular in order get high quality vari-ND filter.

Here is one test.

Thanks for the link. Unfortunatley my ISP is down at the moment, so I'm surfing from my phone and its auto compressing the pics! - will check out the images once I'm properly back on line!!

They show huge differences between the cheap and good filters.

This kind of difference is usually very evident for telephoto. If one buys a polarizer for exclusive use with wide angle shots one might get away with a cheap one without ever noticing anything wrong.

Same is true with other filters too. Telephoto use demands better quality filters.

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