is this a CPL?

[Tulsa]

just says polarizer, is it a CPL?

 

[srinaldo86]

I don't even know what a CPL is...
CPL to me is a Corporal.

 

[PhotoXopher]

Is WHAT a CPL? What just says Polarizer ?

 

[Tulsa]

haha sorry, forgot to link
Filters 77 POLARIZER (HOYA) FILTER - KEH.com

 

[PhotoXopher]

Just says 'PL' on it... which would be linear.

 

[Tulsa]

thats what i thought, seemed like a good price, guess thats pointless for my dslr, what would you use this for?

 

[Tulsa]

is Hoya Green any better than the cheap lenses?
HOYA Circular Polarizer Polarizing CPL Filter 77mm 77 G - eBay (item 220543450695 end time Jan-26-10 16:15:47 PST)
looks like they are not coated, do I want coated? why?

 

[Overread21]

Film cameras can use polarizers without any problems - its DSLRs which suffer problems with auto focus and metering when a regular polarizer is used - which is why the circular polarizers were brought out.