Customers most agreed on the following attributes:
Very nice filter. I would recommend
I bought this to go on my Canon Rebel XTi lenses. After receiving it, I read the Canon instructions that say only use Canon filters. Yeah, yeah, normally. But this actually doesn't seem to work on the lenses.
For [$] this is a fine polarizer that does the basic job of adding punch to the sky and reducing glare on water and foliage. Certainly not top notch optics, but for ordinary use it's great.
Great for outdoor photography.
This circular polarizer wasn't quite uniform over my camera's field of view, but for the price it did exactly what I wanted: darkened skies, removed glare, etc... I am quite happy with it. If you're just starting out, or want a polarizer for a lens you don't use as often, it does the job.