Sinar p-slr review
It maybe useful for some studio applications, but IMO for architecture it takes a very versatile tool (a full frame DSLR with T/S lenses) and turns it into an expensive boat anchor. Cambo and Arca have similar offerings. Sinar
To quote Christopher Barrett, a leading architectural photographer: "These are cool and all, I have one for my Arca, but they have a lot of limitations, namely the use of wide lenses. Maybe you could use wide Medium Format lenses, since they have a retrofocus design, but if you are going to use a view camera, why settle for lenses that are not quite as sharp as Rodenstock and Schneider's just so you can put a dslr on?"