"Condition is everthing." But for a large format lens user who wants great print quality on a limited budget, must the glass on the lens be visually perfect? Shopping around for used lenses, I find many highly touted examples, often with small imperfections, but also at an alluring price. Will I be sorry later? My question is, what imperfections or blemishes on the glass can be tolerated. I know this is a subjective subject, and depends on the specific example, but I would appreciate your opinions.