Wouldn't it be easier to modify the device that requires double-perf film -- 
assume it is an optical printer or projector -- to accept single perf film?  
Far less traumatic to the film.?

It would be difficult to design a reperforator because film shrinks at 
different rates, as does the size of the perforation.  


On Oct 21, 2011, at 4:53 PM, Myron Ort wrote:

> Anyone know of an accessible tool, machine, or service whereby I can  
> add a set of perforations to 16mm single-perforated  prints , thus  
> rendering them double-perforated ?

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