Months ago I wanted a Tilt-Shift - but what I wanted and what I could afford were too different things. Searching the Net were two other options for a shifting lens. Nikon's 28mm - which wasn't a great performer - and an Olympus Zuiko 35mm. I could live without the Tilt -- and so settled to find a Zuiko.
The biggest hurdle was determining if there was any way to adapt the Zuiko to a Nikon - and sure enough - www.leitax.com makes a custom mount for the Nikon F.
I ebayed the Zuiko - a bit of a bad experience because I had to get it repaired/adjusted. The seller was accommodating - but I did all of the leg work - and then I ordered the Leitax mount.
Once it was all said and done - it works great, and it is probably a 30 year old lens to boot.
I've since purchased Nikon's 24mm PC-e Tilt Shift - and with this Zuiko, 35mm FOV I have another option when 24mm is too wide.
A few weeks ago - I used it for the first time on a job (see image) - and the shot ended up being one of my selects. When framed in camera - the view of it being such, was somewhat obvious. Yet don't try to get too excited as, in camera can be misleading.
MIR has a great link describing this lens - here - MIR
Larry H. Miller Chrysler, in Riverdale, Utah.