This is the sharpest wide angle lens I've ever owned. It's sharp corner to corner, even at 2.8. I am migrating to wide primes after years of using a 16-35/2.8 zoom and this purchase was the definitely the right decision.

The Zeiss Batis 18mm f/2.8 is simply a superb ultra-wide prime lens. It's not the smallest optic, but you soon get used to its size, and it's light enough not to be a burden. Aside from some minor distortion and more noticeable falloff, image quality as a whole is very good, with sharpness being...