I want to copy flat art using a Cambo 4x5 and a BetterLight digital back. I have a Componon-S 150mm enlarging lens and since I do not need a shutter this seems like a good bet. My concern is that the distance from lens to large art, say 50" x 80", will exceed the lens design and marginalize the results. Is this a legitimate concern and if so would I be better off with a G-Claron 150 or 210mm? Most of the art will be in the 11x14 to 30x40 range. Many thanks in advance to your responses.