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norcal99
10th of March 2005 (Thu), 01:25
I'm looking into purchasing a 67mm circular polarizing filter for my Tamron 28-75 XR Di and want to know if anyone has any good suggestions. I've been casually looking at the Hoya filters. I would also like to know if there is a noticeable difference between the standard CPL and the warming CPL. Reason I ask, can't you just mess with hue & saturation in PS and achieve the same effect?

Thanks,
Mike
Maureen Souza
10th of March 2005 (Thu), 01:33
Yes you can alter it in PS. I don't think there is a lot of difference..polarizers are polarizers. Some people swear by B&W, others are Hoya fans. I have a Tiffen...when I think about using it it works just fine.
jfred
10th of March 2005 (Thu), 01:57
yes, you can mess about with hue and saturation in PS.. however, the reduction in reflected light and glare that a polarising filter can give you... would not be easy to replicate with post-processing. They can rid of unwanted reflections in both metallic and non-metallic objects, and are a brilliant way of emphasising the colours of the sky in your photos.

Try one and see!
timmyquest
10th of March 2005 (Thu), 02:06
CP's are one of the few filters that photoshop will never be able to replicate. Along with graduated ND filters
tim
10th of March 2005 (Thu), 02:42
Here's a thread I started (http://photography-on-the.net/forum/showthread.php?t=59622) which you might find interesting. I bought a mine locally, we seem to have different brands, a midrange brand, and I love it!
pierrot
10th of March 2005 (Thu), 04:38
Just a correction: they eliminate reflections on NON metallic surfaces only.
And it's true that this effect cannot be replicated by post-processing.
jfred
10th of March 2005 (Thu), 06:06
Just a correction: they eliminate reflections on NON metallic surfaces only.
And it's true that this effect cannot be replicated by post-processing.

They are brilliant for photo's of cars though (and also for spotting accident damaged vehicles with bad paint jobs!) .... probably not strictly metallic surfaces, so I stand corrected.
timmyquest
10th of March 2005 (Thu), 08:23
They are brilliant for photo's of cars though (and also for spotting accident damaged vehicles with bad paint jobs!) .... probably not strictly metallic surfaces, so I stand corrected.


Well...just keep in mind. Paint is usually not metalic...
René Damkot
11th of March 2005 (Fri), 07:31
Just be sure you get a decent (multicoated) one. Don't go for the cheapest, go for the best. I like B&W's 'Käsemann'