I have a chance to buy a Schneider 28mm enlarging lens to be used on a Beseler 23c. Would I have any light fall-off or vignetting issues with 35mm negs? Would I be adding distortion of any kind to images? Im considering this lens to be able to get 11x14 prints at a lower height setting than my current 50mm Schneider uses, and to be able to make 16x20 size prints off the base board (as opposed to the wall). Thanks for any guidance you can give me.