It sounds like a specialized set up for serious architectural photography. If thats your interest it sounds llike a place to start. Perhaps some architecture experts can give you thier view(pun intended) on this outfit. As for the other lenses you mentioned, I think it would all depend on what it is you intend to shoot and if you could get the regular bellows for your camera(and you don't mind swapping them, and the ext. rail out every time you want to use a medium to long lens&#33 The Sinaron-S and the Symmar would probably be the most useful of the lot for general and landscape photography. Good Luck!