Re: jobo 4x5 film reel


Cor Breukel (cor@ruly46.medfac.leidenuniv.nl)
Mon, 11 Oct 1999 09:00:20 +0200 (MET DST)


ON the JOBO reels for 4*5 inch processing: AFAIK there are two 4*5 inch
reels the older type 2509 on which 6 sheets can be loaded; but after
production JOBO advised to use 4 instead of 6 films (something to do with
USA films beeing more flimsy then german sheet film, thus the Kodak films
touch each other during processing). They remodeled their reel (the
2509N), and added some "retainer wall" which you snap on both sides of the
reel; "fixing" 6 sheets in postion; these walls seem also to give better
turbulence.

These data can be found on the JOBO site after some digging.

I have used upto 6 sheets (with relative thick croatian EFKE film..;-)..)
in RolloPYro, with no problems on the old reel. But I try to stick to 4
sheets, just to be cautious.

And I also think you can get by without the loader; which is relative
expensive, just pratice in daylight with old film

Cor Breukel
http://ruly70.medfac.leidenuniv.nl/~cor/cor.html

On Fri, 8 Oct 1999, Sandy King wrote:

> I am very interested in problems related to roatary processing with PMK,
> but pretty ignorant of the many different kinds of "Jobo" drums being used.
> A brief summary of the types of drums available, and how they load, would
> be very instructive, for me sure, and for others I think. Reports of actual
> use of PMK with the different types would also be very useful.
>
> Sandy King
>
>
>
>
>
>
> > I am using the Jobo 2509. I initially found it very difficult to
> >load, and came across a s/h base for the loader which I bought. I then
> >ordered a new black plastic guide for the loader, and found that it
> >wasn't compatible with the old base. So I now load the reel without a
> >loader. As others have said, it just takes a lot of practice. I am
> >also using it to process with Rollo-Pyro and haven't had any problems,
> >even with six sheets. Jobo did change the design of the reel, and it is
> >now no longer necessary to only process a maximum of four sheets. If
> >you have any questions, I have found Jobo's email support to be
> >excellent. David Nash
>
>
>



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