Kenko RF polarizer

[scottkathe]

I am trying to decide on a polarizer for my Mamiya 7 with the 80mm lens. I would also like to be able to use the polarizer on a lens with a 67mm filter size as well. A 67mm Kenko polarizer with numbers around the circumference would be mounted on the lens (step up ring) and the degree of polarization set by looking through a smaller 'finder' polarizer with the same numbering system (http://www.robertwhite.co.uk/products.asp?PT_ID=284). This sounds like it would work well. Here is the question:

Is the quality of the Kenko polarizer on par with a Heliopan or B+W polarizer? I could purchase a Heliopan or B+W and get a cheap smaller polarizer to use as a 'finder' polarizer and index them appropriately.

Scott

 

[qruyk12]

use the mamiya polarizer in reverse with a 67 to 77 step up ring. the mamiya polarizer has 77 front threads.

 

[scottkathe]

use the mamiya polarizer in reverse with a 67 to 77 step up ring. the mamiya polarizer has 77 front threads.

Thanks! That is a great idea 😉 but I have one question, is the Mamiya polarizer a linear polarizer or a circular polarizer?

Scott

 

[qruyk12]

polarizer

polarizer

not really sure if it is linear or circular. try just holding it in from of your other camera and see if it can still focus.

 

[sahe69]

Does it really matter if it's linear or circular? After all you're not autofocusing or measuring through the lens with the Mamiya.

 

[scottkathe]

I was hoping to use the same polarizer on my D90 that's why I was hoping that the Mamiya polarizer was circular but it seems unlikely. It's a moot point though, I just ordered a 58mm Moose warming polarizer from 2filter.com at a nice price.

Scott