Cheap filters?

[tomosllyr]

I'm really keen on buying some filters to expand my kit and abilities. But as a student, I'm working on a really tight budget. What do people think of cheap filters? I've seen a cokin rip-off system, with adaptor rings, a few ND filters and a few graduated ones for £15.

 

[rjbell]

Gritum srb make good quality cokin rip-offs as you call it. They always get good reviews in magazines. They are not as cheap as the one you quoted but cheaper and as good as cokin.
http://www.srb-griturn.com/square-filters-55-c.asp