Thanks Lou. I was asking because although everything that I was looking at were in fact 35mm slides, they had been labelled by Kodak, the local photo store, etc. using varying terms. (for example Ektachrome film vs Ektachrome transparency, or sometimes just the generic “color transparency.”) I just wanted to make sure that we could treat the transparencies like we would treat film. In the case where they are labelled transparency, could that suggest that these are copies and not the original film? Or is it just a case of semantics?