[Leica] I have Jobo!

[Marty Deveney]

Send the tanks back Nathan.  Failure to seal is a major failure with this
sort of equipment and you can argue that the items were not saleable.

Plastic tanks do have one advantage over steel tanks. Plastic tanks fill
> and dump chemicals very rapidly, which reduces the chances of uneven
> developing. I hate the plastic reels, though. I have difficulty loading
> them.


I agree, totally, on both counts.  You can get around this problem if you
have a dark room.  With SS tanks I load the reels and put them in a dark
bag.  I then get the developer ready and fill the tank.  I leave the tank
sitting in a tempering bath if temperature control is needed.  Then turn
the lights out and load reels.  This way the film goes close to instantly
into a full tank.   Put the reels into a full tank, lid on, initial
inversion, then lights on, if necessary.  I usually aim for development
times around 10 minutes by manipulating dilution and temperature.  As time
runs down, I turn the lights off (if I turned them on), then take the lid
off and remove reels and into a tank of stop bath or plain water depending
on the developer (I mostly used acid stop for regular developers, but plain
water for pyro and pyrocat type staining developers).

I developed tens of thousands of rolls this way working in professional
darkrooms, even when I worked in labs with dip and dunk machines, because
alternative developers and contrast manipulation were usually offered.  At
the best labs they had IR lights and IR vision goggles so you could do
everything in the 'dark' but still see what you were doing, except with
Kodak HIE and EIR and similar which fogged in IR light.  All those labs are
closed now, of course.

I feel like all my wet darkroom knowledge is expertise in an extinct
field.  So much wasted time.



On Sat, Sep 2, 2023 at 2:38 PM Nathan Wajsman <photo at frozenlight.eu> wrote:

> Thanks, everyone. Of course I meant “I HATE Jobo” in the subject line, but
> I think you all figured it out.
>
> I am not talking about leaking a few drops. The liquid starts spilling out
> as soon as I begin the inversion. These are 1510 tanks, for single rolls.
> The weird thing is that I used Jobo all the time when I was shooting film
> exclusively until 2004 or so and never had this problem. These tanks are
> new, bought recently. We are not talking operator error, I have many years
> experience and know how to close the tank. I have concluded that I may have
> a bad sample and will not use those tanks again. I also have one Paterson
> System 4 tank from the old days with two Paterson reels, and a couple of
> single-roll AP tanks. The AP reels are useless, but fortunately the
> Paterson reels fit in the AP tanks as well, so that is what I will use from
> now on. I like single-roll tanks because I shoot different types of films
> and most of the time I only have one roll of a particular film to develop.
> The AP tanks have a much more secure closing mechanism, a simple screw-on
> lid.
>
> Cheers,
> Nathan
>
>
> Nathan Wajsman
> photo at frozenlight.eu
>
> http://www.fotocycle.dk/paws
> http://www.greatpix.eu
> http://www.frozenlight.eu
>
> Слава Україні! Героям слава!
>
>
>
>
>
>
> > On 2 Sep 2023, at 03:23, Frank F via LUG <lug at leica-users.org> wrote:
> >
> > IMO, the best Jobo setup is using the 2500 series ranks with the Jobo SS
> > reels. I also use  a CPE 2 bath. I have also processed in these tanks
> with
> > the manual rotating gadget.
> > What I have not done is inverting one of the 2500 tanks for agitation.
> > Now I have NEVER had a leak in these tanks. Not a drop.
> > To help further, state what tank and reels you are using.  State your
> > processing technique. Are you gently doing inversion or a fast snap of
> the
> > wrist?
> > We CAN figure this out!
> >
> > On Fri, Sep 1, 2023 at 10:25 AM Nathan Wajsman <photo at frozenlight.eu>
> wrote:
> >
> >> This afternoon I ruined yet another film in a Jobo tank. Apparently
> >> production standards have sunk so low that it is impossible to invert
> the
> >> tank without half of the developer spilling out. The result is that the
> >> film does not get properly developed. Very frustrating. Those of you who
> >> are using film, which tanks and spirals do you use?
> >>
> >> TIA,
> >> Nathan
> >>
> >> Nathan Wajsman
> >> photo at frozenlight.eu
> >>
> >> http://www.fotocycle.dk/paws
> >> http://www.greatpix.eu
> >> http://www.frozenlight.eu
> >>
> >> Слава Україні! Героям слава!
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> Leica Users Group.
> >> See http://leica-users.org/mailman/listinfo/lug for more information
> >
> > --
> > Frank Filippone
> > BMWRed735i at gmail.com
> >
> > _______________________________________________
> > Leica Users Group.
> > See http://leica-users.org/mailman/listinfo/lug for more information
>
>
> _______________________________________________
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