Originally posted by mark lj I've not been getting much use with the 16-35mm - not sure why. I had thought of going for the Zeiss 18 but it does get quite mixed reviews. I already have the Nikon 24mm f1.4 and I don't think there is enough of a difference between that and the Zeiss 21mm to go for that.
That was kind of my thought on trying the Zeiss 18: I just didn't think there would be enough of a difference between 21 and 24 (though each mm on the wide end is fairly significant). But the Zeiss 18 just doesn't live up to my standard on the D800. Oddly, my brief excursion with the 16-35 on a D600 produced better results (it just had a QC issue). This is contrary to the charts I read on photozone, so I'm thinking I might have a poor copy of the Zeiss 18. I have a hard time going for a $2k lens anyway, so the Zeiss 21 or 14-24 would be pushing it.
The UWAs that are likely up to the D800 (well for that matter, D600 and D3x) after much searching: Samyang 14, N. 14-24, N. 16-35, Zeiss 15 & 21, N. 24 & Tokina 16-28. The Nikkor 17-35 seems to get pretty mixed reviews anymore. I'll probably just try another 16-35, though of course, they are nowhere to be found here in the USA, and I'm leaving on a big roadtrip in two weeks.