JOBO System 1500 clarification

[unwantedfocus]

I ordered a Jobo 1510 and a Jobo 1530 extension. On the side of the JOBO 1510 it says Rotation development 140ml and it holds 1 reel (135). On the JOBO 1530 extension it says Rotation development 330ml and it holds 3 (135) reels.

JOBO 1510 / 130ml / 1 reel
JOBO 1530 / 330ml / 3 reels

= 470ml / 4 reels?

When I connect both parts I have to use 470ml and it holds 4 reels correct?

 

[AgX]

Yes, you just add up the single volumes.

But you made a typo: it is140ml.

In both cases (inversion and rotation) the volumes are minimum ones. As long as a mixing still can take place you can use more volume if needed.
Of course when using the tank in rotation without cap, the volume will be limited due to natural flow out or flow out already during handling.

 

[pentaxuser]

Yes, you just add up the single volumes.

But you made a typo: it is140ml.

In both cases (inversion and rotation) the volumes are minimum ones. As long as a mixing still can take place you can use more volume if needed.
Of course when using the tank in rotation without cap, the volume will be limited due to natural flow out or flow out already during handling.

Yes in fact when I measured exactly 140ml into a 135 tank with the reel inside it only just covered the top - there was no safety margin at all and anything but a loss of a few ml might have lowered the developer to below the top of the film. I always tend to use 150ml for this very reason

pentaxuser

 

[unwantedfocus]

Yes in fact when I measured exactly 140ml into a 135 tank with the reel inside it only just covered the top - there was no safety margin at all and anything but a loss of a few ml might have lowered the developer to below the top of the film. I always tend to use 150ml for this very reason

pentaxuser

Thanks I will make sure to add some extra ml on top.

 

[pentaxuser]

Thanks I will make sure to add some extra ml on top.

A good idea but what I meant to say was that the inversion quantity of 240ml is the one that is safer if it is 250ml as well. Sorry for mixing up my "2s" with your "1s"

pentaxuser

 

[Sirius Glass]

I tend to use 0.5 liters for everything and pour each photochemical back into its bottle with replenisher as necessary. For some reason I do not feel compelled to save and reuse the water.

 

[Pieter12]

I ordered a Jobo 1510 and a Jobo 1530 extension. On the side of the JOBO 1510 it says Rotation development 140ml and it holds 1 reel (135). On the JOBO 1530 extension it says Rotation development 330ml and it holds 3 (135) reels.

JOBO 1510 / 130ml / 1 reel
JOBO 1530 / 330ml / 3 reels

= 470ml / 4 reels?

When I connect both parts I have to use 470ml and it holds 4 reels correct?

Do you have the necessary equipment for rotation?
For inversion, I use 300ml per reel for 35mm, 600ml each for 120, for either Jobo or Paterson tanks. I use a one-shot developer (Rodinal), don't use stop, just water and fix goes back in the bottle until I have done about 20 rolls of film.

 

[AgX]

Do you have the necessary equipment for rotation?

Even twice he got...
https://www.photrio.com/forum/threads/my-new-lab-arrived.187142/

 

[Mick Fagan]

When you combine the 1510 tank and the 1530 extension, the combination is called a 1540 tank, which is probably the best combination of film capacity and developer usage for most of us.

If using the 1510 tank, I always used 150ml of solution with never a problem.

If using the 1540 tank, I always used 500ml of solution with never a problem.

If you are ever able to get the 1520 tank, that works well for 2 x 135 reels or 2 rolls of 120 on a single reel.

The heaviest suggested combination for the CPE2, early model, which I have (had as it has died) is the 1520 tank and the 1520 extension, which allows you to develop 5 rolls of 135 film using 600ml of solution. This was extremely popular in Germany, and to my knowledge, Germany was the only country that had Ilford powder developers for film designed for 600ml of developer solution. This was due to the unbelievable penetration of the Jobo processors in Germany, which by world standards, was phenomenal.

Mick.

 

[unwantedfocus]

I ordered now the 1510, 1520 and 1530 extension tube also I need to get 2 more additional reels and I'm set. Near the future I could also buy another 1530 extension tube as catLABS suggested in this post here.

 

[Mick Fagan]

Well you could use two 1530 extensions, but I can tell you the motor will struggle a little bit on the slow speed and really be pushing things if on the fast speed. I did for a short while use that combination, but I was never happy with the sounds coming from the motor.

Maybe if your CPE2 hasn't done as much as mine did, it could be alright, but if it's done a reasonable amount of work, then ................

If you do process large amounts of film, then obviously you will have large amounts of solution to get out and in, this takes time. If you have quite short developing times, the the time taken to pour out and pour in chemistry will take a bit of a hit out of your processing times. Using a developer type that is longer in this situation, can be quite advantageous.

Whichever way you go, you will be in bliss, rotary processing is fantastic.

By the way, the bottom part of the print tank you have in the other thread, is the 4x5" developing tank, with a print tank sticker on it. You need the correct reel, plus it is very good to have the film loader to load the reel, then you can develop 4x5" film beautifully. It has space for 6 sheets of film, but my suggestion is to only develop 4 sheets with the centre slot empty so film doesn't accidently touch; been there done that.

Mick.

Edit, if you have the 1520 tank core, then that is the same core for the 4x5" reel in the 4x5" tank.

 

[AgX]

This was due to the unbelievable penetration of the Jobo processors in Germany, which by world standards, was phenomenal.

Well, I never came one across locally when looking for used photo stuff.

(Except for a first model, part of a derelict school-lab.)