Canvas that professionals use
I've been painting for quite a few years now and I think I've gotten pretty good at it. I would like to offer my paintings for sale. Naturally I want to do everything like a full-pledged professional artist. Question number 1: what type of canvas do professional artists use for their work? They probably don't all use the exact same type but I want to make sure I don't make a gaff by using the wrong type or one that is too cheap. There is the stretched-over-a-wooden-frame kind and the kind that is just a flat panel. There are various grades of each type. Please advise what type and what grade is expected of a pro.