Hey Gid, I've just realised you're the same guy whom I asked a few questions about the Lee filters and the Nikon 16-35 FX lens over at flickr. As you haven't answered yet, I'll put them up here, maybe you see it here sooner.
How do you find vignetting with the 16-35 at 16mm with the wide angle adaptor?
How many slots can you use without getting in the way?
Also, how many can you use without vignetting when you have an additional filter between the lens and the adaptor, like here
[link] ?
What do you think about the difference between the soft and hard gradiations of the Lee GND filters? (I'm currently using DX with the Sigma 10-20 and Cokin P filters, from them I prefer the hard edged ones).
Also, how do you find the 16-35 for infrared use?
Thank you in advance!