Nice way to resurrect a 3 year old thread! The Avus has rise and shift and a double extension bellows. The Bergheil has all that and a drop bed. Plus the wire frame connects to the front standard (so it shifts and drops with the lens). Also most Bergheils had a bayonet for a few accessory lens/shutter units made for the camera. Good luck finding those unless you are rich. Could be wrong about this, but the Avus and Bergheil have a standard back (as standard as those things were at the time) so plates were interchangable between the cameras along with the Certo Bee-Bee and Nagel Recomar. Makes finding a rollfilm back much easier.
Originally Posted by Eugen Mezei