Re: EIR Processing

[Michel Wurtz - LTE <mw@xxxxxxxxxxxxxxxxxxx>]

Peter De Smidt wrote:
> 
> > Does anyone know the peculiarities of the AR-5 process?  I'm going to be
> > getting a Jobo processor (CPP-2), and was wondering whether I might be able
> > to do this process at home.  My hunch is that this is not possible, otherwise
> > I'd of heard of  others doing this.

Looking at Kodak Web pages, I guess that AR-5 is done with EA-5
chemicals, and that EIR is to be processed like aerial IR films.

look at http://www.kodak.com/productInfo/aerialSystems/TI0274.shtml

You will find that processing requires high temperatures (115 F
to 125 F and short times in each bath (27.6 to 110.4 seconds).

I doubt this can be done by hand or even with a Jobo processor ;-)

But the fact is that I was very disapointed by the colors in E-6
process.  They are much less interesting than those of the old
Ektachrome IR film.

A question for all : What if you store EIR in a warm place ?
I presume that the IR sensitive layer will loss more sensitivity
than the others, and you can gain a less red rendering... So
the magenta dominant will turn to blue, and this can be corrected
by the use of a orange filter instead a yellow one.

Hm hm, not very scientific, and probably not easy reproductible...
but I will try to remove one of my unexposed EIR from the freezer
and made a comparaison... next spring (5 to 6 month of storage
must show the difference... or prove that storing EIR cold is
not necessary ;-)

- -- 
Michel Wurtz	ENGEES - Laboratoire Territoires & Environnement
		1, quai Koch - BP 1039, F-67070 STRASBOURG cedex
		Tel: +33 03.88.25.34.62  Fax: +33 03.88.37.04.97
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