I picked up that 8x10 Arca old-style that was posted here a while back (lovely camera, by the way)--it's my first 8x10, and I'm wondering if I need a better ground glass.
I'm using a Nikkor M 300 (all I have that covers 8x10, right now) and I can see the center portion of the image. I have to move around quite a bit to see the edges and corners.
a) Just the way 8x10 is, buddy.
b) Duh, your lens barely covers 8x10.
c) Dump that old gg