I am just about ready to join the D600 brigade but have one question. I will keep my DX lenses and D7000. I have telephoto covered for my needs but will need some sort of wide angle FX capability. I notice quite significant vignetting on D800 samples with most of these lenses, even gold ring. My question is this, do you present D600 users notice this with your lenses in the field, or is it just a product of pixel peeping testers? My thought is probably to plump for the 16-35 VR but would value any opinions and experience.