Which circular polarizer

[JAB1]

Can someone tell me which circular polarizer to purchase for the Canon 17-40?.....I know that Hoya and Heliopan make great filters....thin vs. regular?...Allan

[Littlebike]

I went into semi sticker shock when I was searching for a 82mm polarizer for my sigma 24-70 lens.

My local shop only had ones that cost $160 or more. I ended up buying a super cheapie on ebay. Hopefully I wont regret it.

[scottbergerphoto]

I use the 77mm B+W Circular Polarizer. It works well and seems to be made well. I screw it on and off my lenses frequently without a problem . It also cleans up well. It doesn't make sense to buy a good lens and then introduce distortion with a cheap filter. My 2c.

[jimsloy]

B+W for me too. 58mm $80 and perfect for the 28-135 lens I've got. I've been told that B+W is the way to go.

[GPR1]

I agree that when you buy expensive glass you shouldn't purchase cheap filters. I have the slim Hoya for my w/a zoom. It's expensive, but worth the price.

[RichardtheSane]

I use a Hoya. I know they are not the highest quality but they are very good quality optics and are far better than the cheapo I bought.
On the 10D (if that is the only body you will use) you don't need to worry about getting a thin filter as the image is cropped by the sensor, so any vignetting (spelling? ;) ) would not be seen.

[CyberDyneSystems]

I have the Hoya on the 17-40mm (77mm thread) Seems to work for me.

[dbarthel]

Consider the Moose Warming Polarizing Filter. About $100 for the 77mm. works well on my 16-35mm. He's at http://www.moose395.net/gear/moosefltr.html