Re: Need Jobo Processor advice

["Jason Revell (in5)" <jason.revell@xxxxxxxxx>]

>Presumably you have tried a few different developers - what is your current
>preference?  Any processing time info. etc. if you use a Jobo without lift
>would also be interesting.
>
>
>All the best,
>
>              Clive   http://clive.bel-epa.com


Clive,

Unfortunately with the space available in the darkroom I have to (within
reason) use just one developer for all our photography (Normal, Raking,
reflected IR, reflected UV, UV fluorescence.......) only the x-rays get
their own special Dev/Fix.

By far the best that I have found is XTOL.  This is used straight as I do
not fancy the idea of doing single shot development on large quantities of
5x4 film.  So the current process is;

Expose the film as 100 asa with a 87c over the lens and using the studio
flash lights.
Process the film for 12 mins in stock XTOL with agitation every minute (not
to easy in a 4 gallon tank!).
A quick dunk in some water, then fix for 7 mins in Kodak Unifix.
Wash for 30 mins in filtered water, then hang to dry.

Both the Dev and fix are mixed with pure water from our paper conservation
labs upstairs and then the whole Dev and Fix is replaced every 3 months (no
pinholes last year, or this YET !).

As for experience with a Jobo, I have never used it for processing B+W film,
just colour film and paper processing.  They are good and you do get even
development, but remember that with constant agitation dev times will fall
sharply.  I am not sure about the fact that they are not IR tight, provided
they are not used in strong daylight I would be surprised if it had much
effect.  I would just cut a small piece of film and leave it in the sealed
drum for 1-2 hours were you are going to do your processing.  Then dev the
film as you normally would, and see if their is any fog over the whole film.

Jason Revell
jason.revell@xxxxxxxxx



*
****
*******
******************************************************
*  To remove yourself from this list, send:          *
*         UNSUBSCRIBE INFRARED                       *
*       to                                           *
*         MAJORDOMO@xxxxx                            *
*----------------------------------------------------*
*   For the IR-FAQ, IR-Gallery and heaps of links:   *
*  http://www.a1.nl/phomepag/markerink/mainpage.htm  *
******************************************************