I found this Praktica Nova at a flea market/consignment shop last week, and it appears to be in great condition, but I have a few questions about it that I hope someone can answer. First of all, which model of Nova is this? I think it's a B (the name on the faceplate is hard to see and is partially obscured), but I've read that there are several variations of the Nova B. Second, how do you set the shutter speed? Is this camera like the Zorkis or Kievs where you have to cock the shutter first and then change the speed, or do you set the speed first? Third, the lens is an A. Schacht Ulm Travegon...what kind of quality does this lens consist of, or is it a cheap substitute for the nicer Carl Zeiss lenses? Any information on this camera would be greatly appreciated. It seems as though it will be fun to use, and seems to be in working order, including the light meter which responds smoothly to changing light. Thanks in advance for any help!