Thanks. I thought I saw some filter comparisons.

Quote Originally Posted by iND View Post
I chose the Lee filter system, it requires a mounting bracket, but with step up rings I can use my filters on any lens.
The quality of the filters is EXCELLENT

There are some good reviews of the Singh Ray variable filter, you might want to visit their website, the variable filter really makes sense.

I am a believer in that you get what you pay for