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  1. #1
    polyglot's Avatar
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    Jobo tank questions

    Hi all,

    I have some quick questions regarding the sizing of tanks. I have a CPP-2 with lift that came with a few tanks (all unlabelled) and two black reels (2502?), though I only have enough centre-post to support a single reel (set for 120 width) in the short tank. The tanks I have are of about 136mm external diameter, one is 100mm long (2521?), one is 240mm long (2830?) and I have a 290mm extension (2870?).

    Can someone please tell me if I've guessed the correct model numbers? Googling for Jobo tanks gets me plenty of pictures and info on the fill levels but nothing about their physical dimensions.

    Now, 15xx drums. They are of smaller diameter, right? Is there any benefit to using them over the 2xxx drums, particularly for roll-film? I have a chance to buy what looks like a 1520+1530 with 4 reels and the complete plastic column, which means I could probably (depending on capacity) soup 4 rolls at a go, which is plenty for me. However:

    My CPP-2 doesn't seem to have the little black plastic roller-extension tabs that the manual says I should use to support 15xx and 30xx drums. The rollers are mounted directly in those little cross-pieces. Are the tabs obtainable? I think I'm going to need them for the 3010 that I would like to buy...

    Do I bother with the 15xx kit or will it just be a damn hassle without the roller support tabs?

    Update: my 240mm long tank has no ribs to support prints so I suspect it might actually be a 2551. It's 213mm long internally and has a flat bottom (unlike the 2521 with an indented bottom) with a thing to receive the centre-column. Any ideas?

    thanks...
    Last edited by polyglot; 06-20-2011 at 08:21 AM. Click to view previous post history.

  2. #2
    Greg Davis's Avatar
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    The numbers you came up with are correct. Alternatively, the short one can be called the Multi-tank 2, and the 240mm one the Multi-tank 5. The number refers to how many 2502 reels would fit when holding 35mm film. For roll film I use the 1500 series tanks due to economy. The Multi-tank 2 with the 2502 reel needs 330mL of liquid to process two rolls of 120 film. On the other hand, the 1520 tank with the smaller reel only needs 240mL for two rolls of 120. You will definitely need a set of extension arms for the 1500 and 3000 series tanks.
    www.gregorytdavis.com

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  3. #3
    polyglot's Avatar
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    Thanks. I think I've found a single seller on eBay that has the right centre column for the Multi-Tank 5, some extension rollers and a couple new 2502s, which would have me all set except for 4x5".

  4. #4
    polyglot's Avatar
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    Yes, I would love a 3010. Finding one that's affordable is another story.

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    Quote Originally Posted by polyglot View Post
    Thanks. I think I've found a single seller on eBay that has the right centre column for the Multi-Tank 5, some extension rollers and a couple new 2502s, which would have me all set except for 4x5".
    Could you tell me who that seller is and let me know how your transaction goes. I'm looking for Jobo stuff also.

    You can pm me if you want to . Thanks
    Jeff Glass

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  6. #6
    polyglot's Avatar
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    Quote Originally Posted by jglass View Post
    Could you tell me who that seller is and let me know how your transaction goes. I'm looking for Jobo stuff also.

    You can pm me if you want to . Thanks
    I got the stuff from from kilgoretrout1979. Most of the things I bought were multi-item Buy-It-Nows ending about 5 hours ago, so I suspect that he'll re-list a bunch of stuff soon. Half the bits I bought (rollers, centre column) were new.

    I'm sure Joboman is excellent too; he just didn't reply to my email before the items I saw (at prices notably better than most other auctions concurrently up for similar parts) were ending.

    Sirius: my quantities are pretty low and I shoot mostly rollfilm so it'd take me a few years (unless I have a big phase-change and decide I like the field camera I don't yet have better than my RZ) to get it down to $2/sheet at the $450 most people are asking for a 3010. $250-300 I could probably survive though, or I might get a 3006, which often seems to be cheaper. Or hell, I might just try a 2509N, some people seem to be able to make them work!
    Last edited by polyglot; 06-20-2011 at 07:16 PM. Click to view previous post history.

  7. #7
    markbarendt's Avatar
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    I got some parts from a subscriber here. http://www.apug.org/forums/members/krifartida/
    Mark Barendt, Beaverton, OR

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  8. #8
    Greg Davis's Avatar
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    I've used the 3006 tank, and it was good, but now I use the 2509N reels and like them just as much. With the reels, I can do up to 12 sheets at a time, but the 3006 limited me to six sheets at once. I have also bought from the eBay seller you used. He shipped quickly and the stuff really was new, but it differed from some of the older stuff I had, which made me think either I had really old stuff, or the new stuff wasn't made by Jobo, but a rather a copy. Either way, they are nice and work great.
    www.gregorytdavis.com

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  9. #9

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    15XX system tanks have advantages and disadvantages compared to 25XX tanks.
    the 250XX tanks uses less chemistry for smaller quantities of film per process, but get less efficient as you stack them up. the 1500 are better when loaded full or with extensions, but they do not allow for 4X5 reels...
    also - i have found that even with a flat level processor the 1500 tanks as they are smaller are more prone to uneven developing on one end of the drum (usually the bottom end), where less active developer ends up due to the design of the tank, 2500 tanks suffer less from this issue.
    there is also something to be said about convenience difference in loading 1501 reels vs 2502. matter of preference really. after you get used to it they are pretty much the same.
    2509 reels give really amazing results, and after comparing them with 3010 drum results i am not sure it is worth the huge extra cost, however, 3010 drums use much much much less chemistry (about 50% less for same amount of film when fully loaded), which might be worth while calculating in to the total cost of purchasing and operating a drum. also of course - 3010 drums are ONLY for sheet film, where as with your multi tank 5 you can mix and match 1X2509 and 2X2502 reels at the same time, basically trying to say, its more flexible.

    any other questions..? ask away!

  10. #10

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    also forgot to mention - you CANT use 1500 tanks without extension arms, same thing goes for expert drums (3010)

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