Widest lens you can use on Linhof Color 4x5?

Thought I'd see if anyone knew what the widest lens was that could be used on the Linhof Color 4x5
camera? I have a 100mm.

Could I use the Linhof Technika Schneider 75mm f8 Super-Angulon Lens?

According to Linhof you can use as wide as a 65mm. I've heard you can use a 90mm on a flat board.

http://www.cameramanuals.org/prof_pdf/linhof_color.pdf