Re: [APML] Dumb Hypering Question :)

["Bobby Middleton" <bobm@koyote.com>]

Tony's in the minority as far as hypering on the reel Michael. Most
including me do it with the film on the cassette. Sure saves lots of
troubles and potiential Murphy's. I'd suggest that route for your first
tries.
Hypering times............they can be very inconsistant with everyone's
different setups and proceedures. The only real way to find the correct one
is to compare a developed unexposed hypered strip to a developed unexposed
unhypered strip with densitometer readings. The hypered strip should be .1
above the base of the unhypered strip if I remember correctly.
Bobby Middleton

"God doesn't play dice".........
Albert Einstein on blind chance
http://www.koyote.com/users/bobm/astro1.htm

----- Original Message -----
From: Michael Greger <mgreger@dashmail.net>
To: <astro-photo@seds.org>
Sent: Friday, October 19, 2001 11:03 PM
Subject: [APML] Dumb Hypering Question :)


> After seeing some of Tony's recent results as well as those of others
> (incredible pictures, BTW), I decided to give hypering a try.
>
> OK, one dumb question...  Some of you, including Tony, hyper on an open
> reel.  How do you get the film on the reel into the hypering chamber?  I
> have a Lumicon model 600 and the instructions suggest that you pre-heat
> the chamber for 4 hours to allow it to reach temperature.  I could put
> the heated chamber into my large changing bag to load the film, but it
> gets quite hot (I did not realize how how 50 C was...).  So, it this
> what you guys do?  Or, are you simply loading in a dark room?  The only
> other alternative I can imagine is that you put the chamber in the
> changing bag before heating, put the film in the chamber, and then begin
> to heat it.  Once the chamber is at 50 C four hours later, start the
> hypering process...  So which is it?
>
> Also, I have seen conflicting reports on hypering in the canister vs. on
> an open reel.  Lumicon suggests that it can take much, much more time
> (up to several days vs a few hours) to hyper in the canister.  I have
> also seen reports of uneven hypering in the canister.  But, I have also
> found reports that some are hypering in a canister for times somewhere
> around those suggested by Lumicon for an open reel.  So, what is the
> concensus?
>
> Finally, while searching the APML archives, I found a survey of hypering
> times for various films.  Several people responded.  Is anyone aware of
> a database on the web, perhaps based on the responses to this survey, of
> hypering times used by amateurs?  Seems like it would be a useful thing
> to keep track of...
>
> Thanks,
> Mike
>
> --
> --------------------------------------------------------------------------
---
> Michael J Greger                   Intel Corporation
> mgreger@dashmail.net               Intel Server Chipset Design Engineer
> http://www.geocities.com/mjgreger0 These are my opinions, not those of
Intel!
> --------------------------------------------------------------------------
---
>
>
>
>
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