There are wide lenses, ultra-wide lenses, and then there's the Venus Laowa 10-18mm f/4.5-5.6 ($849). Its angle of view is grander than any other full-frame zoom, fish-eyes excluded. It's a manual focus optic, but comes in at a lower price and with a smaller build than its closest autofocusing competitors. It's worth considering if you're after the epic look an ultra-wide lens delivers, but you'll get crisper images and autofocus from the Nikon Z 14-30mm or Sony 12-the 24mm G, though both cost a lot more.Purely Mechanical The 10-18mm is rather small when you consider just how much of the world it takes in. It measures 3.6 by 2.8 inches (HD) and weighs 1.1 pound. A petal-style hood is integral to the design, protecting the bulbous front element. The optical design precludes the use of front filters, but you can add neutral density to the rear—it supports 37mm threaded filters. The lens is sold in two versions. We received it in E-mount, compatible with mirrorless cameras from Sony....
The Venus Laowa 10-18mm f/4.5-5.6 lens has the widest angle of view of any rectilinear full-frame zoom, but it doesn't offer autofocus.
Ultra-wide view; Full-frame sensor coverage; Rear filter support; Crisply defined sunstars; Silent aperture control; Available for Nikon Z and Sony E systems
Optics suffer on high-resolution cameras; Visible corner color shift; Shows chromatic aberration; Manual focus isn't for everyone