Filter size for Nikon 17-55 2.8 77mm
I have a Nikon D7100 and I want to buy graduated ND filters. The lens I expect to use the most with these would be my Nikon 17-55 2.8 77mm. Im looking at Singh Ray filters but my dilemma is whether I would be better off with the 4x6 size or the Cokin P size (85mm-120mm) as this would make quite a difference in the total price. I have read about problems with wide angles vignetting at their low end with filters but where this is a DX camera will that even be an issue Thanks for any help!