I agree with noseoil.
I am a happy Shen-Hao user who switched from a Wista 4x5 Field camera. The Shen-Hao will focus my 55mm Apo Grandagon mounted on a flat lens board without including any of the camera in the picture (the Wista would not). Most of my Shen-Hao photography is with lenses in the 55mm to 180mm focal length range, with an occasional 300mm shot.
I'd do it again.