Hi David. The only difference between single and double perf is
exactly as
you stated, and Super-16 is single perf. Double perf can be run by
any camera
(except an Auricon if you are recording sound-on-film). Single perf
can be
run by almost any camera, (except a Mitchell, which needs both
perfs). I
haven't loaded an NPR in a long time, but I imagine that it will take
either
A or B wind --- but that's just a guess. Try it with a dummy load and
make
sure that nothing scratches it when it is A wind. Also, Eclair made a
factory
Super-16 conversion kit for the NPR if you ever decide to convert it.
They do
it at Optical Electro House in Culver City, and Les Bosher in England
probably does it as well. The NPR is a great camera. Very quiet and
fantastic
registration. Mark. PS - There is an NPR site on the web.