I wanted a Nikon 14-24mm f2.8 with an adapter for ages, but these new Sigma 14-24mm f2.8 and Tamron 15-30mm f2.8 VC seems to be good choices for Canon.
- Nikkor 14-24mm f2.8 is a proven and very good lens, but no autofocus and exif in Canon, and serious flare problems for non-astro work.
- Tamron 15-30mm f2.8 VC loses 1mm in the wide end but have VC for non-astro work. T3.3 in Tamron against T3.0 in Nikkor.
- Sigma 14-24mm f2.8 is too new to jump into conclusions yet: some reviews state great sharpness (even more than Nikkor) and less Chromatic Aberration, but some reviews state an average performace.
- Unfortunately Canon 16-35mm f2.8 is out of the league due to excessive vignetting.
Which one of the three would you pick for nightscape and ladscape photography and why?