Quote (Solarves @ Fri, Feb 20 2009, 06:30pm)
I have owned I think one Optex filter, a UV which I purchased in Canada. In terms of polarizers, I've owned/own ones made by Tiffen, Hoya, some off brand, I think "Optical" and B+W Kassemann. The B+W is by far the best polarizer I have used. You have to consider such things as multi-coating and weather resistance, etc. But in all my uses of the CPL filters I do notice a difference in the "strength" of the polarization, if you will. And as said the B+W is the best that I have personally used.
Also as you need a 77 and 67mm you could purchase the 77's which cost more but then buy a $5 step down ring to be able to use that 77 on your 67 ... whereas if you bought 67 and stepped up you would likely see vignetting on wider lenses. This saves you from buying two sets and you can save that extra money for other accessories/lenses, etc.
I think B+W says something which I consider kind of a maxim. It goes something like this: "Your lens is as good as the filter on the end of it." Meaning if you put a piece of crap on a really nice lens you degrade your image [potential] immediately. And as is always said, the old cliche still holds true, "you get what you pay for."
I often do not shoot with a filter but if I do it's usually a CPL ... and I will use a UV if in close quarters with people ... as I don't like the idea of my front lens element being hit by some passerby in a crowd.
Well I have also heard that B+W makes the best polarizers and only reason why I am considering to get Optex is because they are on sale. The regular price on the 77mm is almost 100 dollars here but I can get it for 50

while the regular price on the 67mm is almost 80 and I can get it for 25! so you can understand why I want to buy those lol. So if the "you get what you pay for" logic applies here then those Optex circular polarizers can't really be pieces of crap lol.
The only info I have found about those filters are:
Quote
** Made from finest quality optically flat glass in Japan
** Coated and heat treated glass to eliminate distortion and minimize light reflections
** For autofocus cameras and camcorders
** Intensifies cloud formations resulting in deeper blue skies
** Brings out deep green colours in trees and foliage
** Protects lens from scratches and dirt
Which doesn't say much and it doesn't say if it's multi-coated or not

Quote (Tomes @ Fri, Feb 20 2009, 06:47pm)
Uv filter on dslr is no different than non uv protective filter, since dslr sensor allready filters uv light(just like ir). Uv filters only makes difference on film.
Well I use UV filter on my lens as a protection

Quote (chantal7 @ Fri, Feb 20 2009, 06:56pm)
I was actually going to buy myself a polarizer 77mm for my new lens; but then changed my mind and got a new camera bag instead. I might regret it later, seeming as the summer is coming up soon; but we'll have to see.
I've heard some very similar advice when it comes to buying filters. Especially the part where if you're going to buy one for a nice lens, you my as well buy a nice filter too. Thanks for the into

I learned something new today!
I went to Don's earlier and they don't have those filters in store but I could buy them online. The salesdude told me that they still have like 7 of those 77mm in stock elsewhere so you may will be able to get it when you get your next paycheck or whatever lol.
This post was edited by Futurama on Feb 20 2009 07:04pm