schooler@inmet.UUCP (10/07/85)
Professionals use 70mm roll film when they want to shoot lots of
pictures with medium format cameras. A 70mm back for a Hasselblad
or similar camera will hold a lot more exposures than a 120 or
220 roll. I believe that 70mm backs are also available for larger
format cameras. I think that one can get a thousand exposures or
more on a 70mm roll for instrumentation purposes!
-- Richard Schooler
Intermetrics, Inc.
{ihnp4,ima}!inmet!schooler