Get Schneider PC-TS Super-Angulon 28mm f/4.5 HM Aspheric at B&H Photo.
See existing review of Schneider PC-TS 90mm f/4.5 and 50mm f/2.8.
The Schneider PC-TS 28/4.5 HM ASPH is a beast. Under no conditions would I want to strain the lens mount by having it support the 1608g lens (without caps), since most of that weight is well forward. Thus, the built-in tripod foot is essential, and kudos to Schneider that builds in dovetail that mounts directly into my Really Right Stuff clamp on my Arca Swiss Cube.
Will the Schneider PC-TS 28/4.5 deliver the goods? Its predecessor, the Schneider 28mm f/2.8 PC-Super-Angulon (shift only) was good for its time, but a dud on a 36MP DSLR.
At about $8300, Schneider PC-TS 28/4.5 is clearly intended for the professional market. If if delivers optically, those professionals needing its capabilities will find the price manageable. But at least by the pound/kilo, it’s a much better deal than the Leica 50/2 APO!
Cick for larger view.