P3D Duplicating films

[CanterMike@xxxxxxx]

In volume 2833 Michael Georgoff wries:

 

"I want to shoot, then have the film duplicated to yield maybe 5 or 10
duplicate rolls, all uncut."


Good logic so far.  That's how Hollywood makes multiple copies of movies for
distribution.

Here is where you've gone astray:

"... load the Viewmaster camera with a roll of "duplicating film"
(Ektachrome 5071?)..."

You should load your camera with whatever film you already prefer to shoot,
have that film processed and returned uncut, and then have that filmstrip
duplicated.  You may want to contact a local "custom" lab, or deal with Dale,
Seattle Film Works, or another mail order lab (depending on your work habits
and personal preferences).

5071 (along with its companion, Vericolour Slide Film 5072) is a "lab" film
that is not meant for regular pictorial work.  It is what the lab will use to
copy your regular film.  5071 and 5072 are tungsten balanced films, with low
contrast and special cut-offs between the colour layers.  High volume labs use
special machines designed to hold long rolls of originals that are then
contact printed to the duping film.  Small labs may use a light source (like a
colour enlarger) and a "repro" lens (often a good enlarging lens mounted on
the camera) to make copies.

5071 is used for copying positive to positive and gets processed in E6
chemistry, while 5072 is used to make a positive from a negative and is
processed in C41.  While both films are available in 35mm 36 exposure rolls,
they do require some (sometimes tedious) set-up and testing to become
economical. 

Good luck.

M Canter


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