Originally Posted by Ole
30x40 from 8x10" is only a 4x enlargement.
That should be quite feasible with any 240mm lens made in the past century, whether it's coated or not.
Most of my colour photos were shot with single- or uncoated lenses ranging from a 8 1/4" WA Rectilinear (on 4x5") to a 210mm f:6.1 Xenar (on 5x7").
Exactly, coating has nothing to do with a lens ability to render good color photos. Coating only affects the lens resistance to flare and in some cases can increase the contrast.
Color photography started long before lenses were coated.