Sent: Friday, September 21, 2001 9:45
PM
Subject: Re: [APML] Film Hypering
Thanks for the info.
I think i'll make a unit rather then buy one, and use a
hand actuated pump for the time being. I will use a good chamber and hook up
some 1/2 way decent monitoring equipment, it should cost about the same as
buying it (as I will have to pay duty/taxes/shipping to get it into Canada
anyways). But if I can find a good deal on an electric one I may grab
it.
Caution; high-vac for color films is a pretty
much uncharted path with only one APML member giving it a try that I know of
(Philip Perkins). He had problems with un-even hypering
IIRC
Sounds to me like the film base itself is degassing
in the high vacuum (along with everything else in the vessel and the
vessel itself) and contaminating the film somehow.
As far as the wife/girlfriend thing goes...was just a
little joke....for now.
----- Original Message -----
Sent: Friday, September 21, 2001
12:46 AM
Subject: [APML] Film Hypering
After ordering the parts for my purge system I have
decided to take the plunge and get a hyper kit together also.
Hypered film is simply better.
From what I have gathered hypering films is as much of
an art as a science.
It seems that the Lumicon Hyper kits are a pretty
good deal compared to buying the individual components ones
self. But are the hypering conditions with the Lumicon
kits repeatable with any expectation of reasonably high accuracy
(temperatures, pressures etc)? I am considering
getting some kind of vacuum pump and a good chamber. Can anyone
suggest a good model pump (Im looking at the Welch model 8803 or
1400)?
Is it better to subject the film to a lesser vacuum but
for a longer period, or a high vacuum for a shorter period, or does it
even matter lol. Would not the actual film base outgass at high a
high enough vacuum, denaturing it somehow?
I have to admit having a bell jar hooked up to a vacuum
pump downstairs in my "lab" would make me feel like Dr. No or something,
probably a guy thing. Although my wife, not to mention my
girlfriend are starting to think im really weird buying all this
stuff.
Or am I an idiot, overthinking all of this and
should just go out and get me a Lumicon model?