EMDE 7-perf masks

[P3D emdesher <emdesher@xxxxxxxxxxxxxxxxxxxx>]

On Thu, 5 Sep 1996, emdesher wrote to Dr. T:

On the 7-perf EMDE masks there is a small nib, or film holder,
positioned at each of the four corners of the mask aperture.  These nibs
produce the same result of the Albion mask grove, in that you have no
physical limitations to repositioning your film horizontally.  But with
the Albion mask, because it lacks the foldover feature common to all
EMDE masks, will have a light leak present during projection from its
grove unless it's covered by opaque tape.  To answer your second
question (why there are more then two masks) will take a longer response, as
it involves explaining why EMDE (& Stereo Realist, too!) realized it was
necessary to offer a range of masks.  In brief, a size 9 shoe doesn't
fit all feet, even if it would fit most people.  More later, if P3D is 
interested.  Dennis Sherwood

 


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