Hello, I believe that the lens you have there is an earlier version of the Computar Symmetrogon. They made the f/6.3 lens for general photography on the 4x5 and 5x7 cameras. It may just barely cover 8x10, but not by much and the corners may not be any good. They also made a graphic arts lens that is an f/9.0 lens in the 210mm focal length and it will more than cover 8x10 at infinity and maybe even 11x14. They seem to be good lenses.