Tokina Disc. 20-35mm f/2.8 AT-X 235AF PRO Super Wide Angle Zoom Lens w/hood & Pouch for Nikon AF D Great SLR lens that works with more modern Digital SLR cameras that have their own built in more such as Nikon D800 15 elements in 11 groups Minimum focus diastance of 0.5m, angle of view 96deg20minutes @ 20mm filter size 77mm, and comes with it's own hood