scottkinfw said:
A quick question for lovers of this lens.
I have the 24-70 2.8L II. I love this lens. There is a lot of overlap between the two. What are the benefits to the 16-35 2.9 over the 24-70? Any reason to own both?
Thanks for the info.
Sek
If you're a casual photographer, even a "traditional" landscape photographer, then 24mm may be all you'd ever need in the wide range, and that new 24-70 mk2 is an incredibly sharp lens, corner to corner. It's Canon's crown jewel, as far as being wider than 35mm and faster than f/4 is concerned.
Even if you're a travel / landscape etc. photographer who does want to go wider than 24mm, there's a pretty good chance that you still don't need f/2.8 wider than 24mm, and a 16-35mm f/4 L IS is another wicked-sharp option that will save you at least half a pound. Not compared to the existing, aging mk2 and the new f/4, since they're about the same, but compared to the newer more exotic 14-XX and 15-XX f/2.8 ultrawides, which add as much as a whole pound above the existing Canon 16-35 2.8.
Or, if you've got tons of cash, and don't want to "waste" your mm yet don't mind lugging around a similarly ginormous lens, there's always the 11-24mm f/4.
Simply put, you have to really ~16mm, AND f/2.8, in an extremely sharp package, for such a mk3 lens to be worth buying. Which, even as a full-time wedding photographer, I must say is a tough thing to truly require. Even wedding photojournalism is just fine at f/4 when you go wider than 24mm, especially if you have stabilization.
Basically, the main application is astro-landscape photography. And even then, a lens needs to have pretty low vignetting to be worth its pricey aperture.
TLDR unless you're a low-light / nightscape junkie, get the 16-35 f/4 L IS and be happy.
