After shifting my Super Speed Graphic's lens sideways to the limits and checking images on the ground glass, I'm rather pleased with image sharpness beyond it's rated image circle of about 153mm. Especially at f/16 and f/22. Using a 10X loupe, image detail 95mm off center looked as good as the detail 75mm off center.
Anybody done any photos with such offsets with this lens? I'm going to shoot a few sheets and see what is acceptable for me. Hope it turns out to be pretty good.
Maybe the original ground glass is too coarse to resolve image detail at that level. It might be better to do this test again without the ground glass. Just use the loupe to view the aerial image at the film plane.