[Frameworks] 16mm Double perf clear leader

[Scott Dorsey]

It is a thing you should be concerned about if you ever intend on making a 
print.  Use the same clear leader that you'd use for editing camera originals,
not the leader you'd use for editing prints.  That way you get the same pitch
that camera originals normally have.

That said... it is likely not difficult to modify a camera for B-wind instead
of double-perf.  If it's using those 50 foot magazines, there is a way to 
load B-wind film into them that mostly works.
--scott