i'm new to the hasselblad V system..
i've borrowing a 503CW and 2-220 and 1-120 backs..
my questions are:
can i shoot 120 film in the 220 backs?
are the inserts the same for both backs?
is it possible to interchange them mixing up serial numbers?
if i get a CW winder, can i still use a strap for the camera?
is there such thing as a bayonet to screwmount adapter?
which is the best metered prism which can be used with a polaroid back?