Quote Originally Posted by thefizz

What is your experience with Cokin. Surely a coloured piece of plastic is a coloured piece of plastic, how can they differ.

I'm with you man. Its all marketing!
I used to buy ONLY B+W filters for black and white work. For some reason, I have a bunch of Tiffen and Hoya (yellow green and orange filters) and I cannot tell the difference or which ones I have on what lens. I'm sure Cokin is the same. Take pictures, don't worry.