Hello. If anyone out there has done serious work and has a lot of experience with any of the following 4x5 cameras (preferably with lenses in the 72mm-110mm range), and is willing to answer some questions, please PM me.

Thanks
Michael

Cameras:

-Ebony non-folders such as 45SU, SW, RSW
-Arca Swiss F basic or F Field (with or without Orbix)
-Linhof Technikardan 45S, Linhof Kardan RE
-Toyo VX125
-Sinar F1/F2