Mailinglist Archives:
Infrared
Panorama
Photo-3D
Tech-3D
Sell-3D
MF3D
|
|
Notice |
This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
|
|
Re: Wet HIE Film Boxes
- From: "Willem-Jan Markerink" <w.j.markerink@xxxxx>
- Subject: Re: Wet HIE Film Boxes
- Date: Mon, 6 Jan 1997 10:38:24 +0000
On 5 Jan 97 at 18:09, Robert Long wrote:
> On Sun, 05 Jan 1997 03:01:36 +0000 (GMT), you wrote:
>
> |it is a verb as well, as in Dutch, otherwise substitute with=20
> |sublimation....;-)), in relation with its air content. A film=20
>
> You've taught me the correct use of a word I've been using since I was
> a kid. A teacher said that sublimation meant the direct evaporation
> (without intermediate melting) of frozen moisture. That's the way
> I've used the word ever since. My regular dictionary contains no
> definition at all that fits the present context, so I looked in a
> scientific dictionary. Behold, only one definition: to condense from
> vapor, as heated iodine on the walls of the vessel.
Yep, vaporizing is ment both for starting with the liquid *and* the
solid form of a material/substance, but condensating vs sublimating is
liquid and solid respectively.
> Once you have opened the container, you *might* lower the chances of
> damaging the film by leaving the container unsealed in the freezer, so
> the trapped moisture can escape--hopefully, before it condenses. But
> I agree with your implied objection that leaving the film cassette in
> the freezer without any container probably is worst of all.
Not to mention the fact that I mostly likely will fog HIE severely
without the cannister/container. I say 'most likely', since I am
still not sure whether the film leader sticking out in case of
unexposed film is the main contributor for fogging, whereas exposed
film most often has the film leader in (at least in my case).
Remember my arguments that both IR-leaking felt trap and fiber-optic
acting film (due to the lack of an anti-halation layer) are
responsible for the fogging? I once believed that each problem on its
own doesn't cause the fogging, but it now occurs to me that the
'film leader in' might be a nice way to counter that....I know more
than just me faced the problem of fogged film by some stupid lab
operator, who threw away the containers the moment I left the
shop....8-))
Seems as if the IR-leaking felt is solely responsible for the
fogging!
Btw, I wouldn't know what to do without the paper warning sticker on
the lid of the cannister/container: scratching some paper of it is the
only way for me to see whether the film is exposed or not....I can't
look inside, can I?....;-))
Not a problem if you only expose/develop one film at a time, but it
would be a nightmare with multiple bodies & films simultaneously
otherwise. Even now it requires more discipline that I would like to
keep them apart....I have started to scratch the sticker the moment
I take it out of the dark load bag after I loaded a film (empty
container)....8-))
> The moisture damage on the boxes of the films I store in my freezer
> convinces me that I do well to heed the film manufacturers' warnings
> to thaw before opening and not return to the freezer a package whose
> vapor seal has been broken.
All boxes that are floating around in my freezer outside the
tupperware container (the even oddier film types like neg->slide copying
stuff I once bought) are sealed in plastic bags. By looking at some
kinds of food packaging boxes, I know they will soak beyond
recognition without it....8-))
--
Bye,
_/ _/ _/_/_/_/_/ _/_/_/_/_/
_/ _/ _/ _/ _/ _/ _/
_/ _/ illem _/ _/ an _/ _/ _/ arkerink
_/_/_/
The desire to understand
is sometimes far less intelligent than
the inability to understand
<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]
------------------------------
Topic No. 9
|