I think yours is a reasonable question. Why re-invent the wheel. Maybe somebody has a quick answer that will save you a lot of time and money. The collective knowledge of these viewers is wonderful. I once worked in a camera shop over Christmas vacation and was amazed how much I did not know about cameras. Oh, I knew news cameras pretty good, like Nikons and Rolleiflexes and Speed Graphics but much about Minoltas and where in the devil is the battery on a really old Polaroid? (Inside the leather bellows, it turned out.)