Hello from Karl

I still have not got my LF camera, I ended buying an Mamiya RZ, and still need a LF for architecture and scenics.

How different is the iv from the v and how useful is it for architectual photogr aphy. I am still looking for a 2nd Arca Disvovery or F- Basic. Does this forum know of websites where I can try get 2nd hand equipment, is there a subsection within this forum that deals with classified adds?

Cheers Karl