A couple of ques ... I'm after a landscape lens for my canon 5DMkII ... I was hanging out for the 14mm but we're going on hols Dec (desert direction) & I'm getting impatient so was looking at the 16-35mm.
There's probably heaps of forums on fixed vs zoom does anyone have opinions between the two ... ignoring the price issue for now!
What are the issues when attaching filters as far as vignetting is concerned. Currently I'm using the 24-104mm & it suffers at 24 when I attach polariser & ND ... (hummm does PSCS5 content aware remove my nasty black corners for me!!!)

Thanks