Arca 4x5 Viewer fits Calumet 540?

[Hailu Shack]

I've got a nice used Calumet 540 4x5 system and need a good viewer for it Other than the Cambo/Calumet viewers, do any of you know if the viewers from Arca-Swiss, or Toyo/Omega will work?

I have not done anything to alter the factory specs to the revolving back, or to the ground glass.

I shoot urban architechture and landscape. I often have to keep one eye on my equipment and surroundings.

Thanks in adance for the advice!

[James Driscoll]

Sinar made a very hard to find adapter to mount their Bino-Reflex onto Calumet cameras.

They also made adapters for Toyo, Plaubel, and Linhof cameras.

As far as I know, this was the only attempt at making a semi-universal viewer.