The 16mm F2.0 ED AS UMC CS ($499) is just one in Rokinon's line of affordably priced manual focus lenses for SLRs and mirorless cameras. It covers a very wide field of view, and opens up all the way to f/2 for low-light photography. It's a good choice for APS-C SLR owners, and occupies a fairly unique place in the market—none of the major SLR systems offer a comparable autofocus lens for cropped cameras. But if you shoot with a mirrorless camera you may find it to be a bit bulky, as compact options like the Olympus M.Zuiko Digital 17mm f1.8 ($389.00 at Amazon) , the Samsung 16mm f/2.4 ($493.99 at Amazon) , and the Sony 16mm f/2.8 ($249.24 at Amazon) are available. DesignThe 16mm ($299.00 at Amazon) measures 3.4 by 3.4 inches (HD) and is a bit hefty at 1.3 pounds. Its size isn't an issue with an SLR, but it may be a bit much for mirrorless systems. It covers a field of view that's equivalent to a 24mm prime on a full-frame camera, although it doesn't offer a big size advantage o...
The affordable Samyang 16mm F2.0 ED AS UMC CS is a sharp, fast wide-angle lens for APS-C SLRs and mirrorless cameras.
Nice price; Quite sharp; Focuses to 7.9 inches; Available for multiple systems
Doesn't cover a full-frame image sensor; Manual focus isn't for everyone; Omits optical stabilization; Some fall-off at corners