Jobo ATL 1000, really "one shot"?

[Pasto]

Another Jobo ATL-1000 question. If I understand correctly, these processors are designed for one shot processing. All the chemical get dumped after the run is finished. Can the chemicals be reclaimed somehow? I use the zone system and often develop one sheet at a time. It would be a great waste of stop, fix, etc. if I could not reclaim the chemicals. Any info from current or past users of the ATL-1000 would be very much appreciated.

Thanks again,
Louie

 

[Kino]

Another Jobo ATL-1000 question. If I understand correctly, these processors are designed for one shot processing. All the chemical get dumped after the run is finished. Can the chemicals be reclaimed somehow? I use the zone system and often develop one sheet at a time. It would be a great waste of stop, fix, etc. if I could not reclaim the chemicals. Any info from current or past users of the ATL-1000 would be very much appreciated.

Thanks again,
Louie

Louie,

Go Dead Link Removed and read the online users manual.

Cheers.

Frank

 

[Pasto]

Thanks for your reply Frank. In fact, I did read the users manual. It really confused me A note at the beginning states that It was written for both the 1000 and 1500, unless stated otherwise. However, the text only seems to refer to the 1500, and some things are clearly only available on the 1500 but not indicated that way. I was hoping that someone had tried to reclaim the chemicals and could provide some nuts and bolts experience. The chemical all come out of one hose. I guess I could stand there with an empty bottle, and replace the bottle after every step? Would defeat the purpose of "push a button and walk away" ease of use.

 

[RalphLambrecht]

Louie

I'm a firm believer in one-shot processing. It makes for very consistent results. The Jobo-process allows for using little amounts of chemistry. Where is the problem?

Nevertheless, it would make sense to 'catch' the 2nd fixer and use it as the first for the next process. It also makes sense to catch the stop, because that can be used several times.

Why do you say that you develop one sheet at a time due to the Zone System? Don't you collect and sort all the N- and the N+ and develop them together, meaning all the N- together and all the N+ together?

One more point to think of, the development times change if you keep the amount of developer constant but change the amount of sheets developed. Did you compensate for that during Zone System calibration? They also change if you use the developer multi-shot.

 

[eclarke]

Hi,
I have just acquired one of these and have been reading the manual. There are two tubes coming from the back which should allow you to reclaim. The problem with the processor for me is that it seems the lowest temp this will operate at is 75 F. I do 99% B&W and develop at 68 F. I purchased it for an extremely good price and just bought it as a hedge in case I desire to shoot some more color. This one appears to be unused..EC

 

[Pasto]

Thank you Ralph and EC. By the way Ralph, I like your book very much and refer to it often. I don't use N numbers but rather develop each sheet to a specific average gradient. When the average gradients are close I will average the development time for 2 sheets. I rarely develop more than 2 sheets at a time. Regarding developer volume, I keep the volume (working solution) per surface area of film constant.

I agree regarding reclaiming the stop and fix, it would be a waste to toss these out after 2 sheets. I always use the developer one-shot. As EC noted, I could reclaim one step at the time at the output hose of the unit. I could also switch to a water stop and reclaim fewer steps. Running the process at 24C is also problematic for me as my current shortest development time (Xtol 1:1, TMX, 20C), is just under 5 minutes. 24C would bring this down quite a bit I imagine. At this point it seems that the ATL-1000 will not make the process much more automatic than my CPP-2, and maybe even cause some headaches!

Thanks again for all your insight,
Louie

 

[dancqu]

I also don't get it. Where is the problem? Although
noted for their minimal solution volumes needed, any
Jobo will handle a fair amount of solution volume. For
longer process times use developer one shot and very
dilute. I suggest 10ml of A. Thio. concentrate per 8x10
sheet equivalent. Then toss. Drop the stop. With
one-shot fix you won't miss it.

BTW, how much solution can you pack into that
machine of yours? Dan

 

[dancqu]

I also don't get it. Where is the problem? Although
noted for their minimal solution volumes needed, any
Jobo will handle a fair amount of solution volume. For
longer process times use developer one shot and very
dilute. I suggest 10ml of A. Thio. concentrate per 8x10
sheet equivalent. Then toss. Drop the stop. With
one-shot fix you won't miss it.

BTW, how much solution can you pack into that
machine of yours? Dan

Correction: 20, 20ml of A. Thio. concentrate per 8x10
equivalent or 20 grams of S. Thio. anhydrous. The 10ml
suggestion is for 8x10 FB paper. I tray process using
minimal solution volumes. Dan