Want to Buy WTB: 16x20 drum (Chromega? Cibachrome?)

[ignatiu5]

I'm going to try my hand at rotary processing instead of trays for 8x10 sheet film. I just won an Ilford motorized base and am now looking to see if someone here has a 16x20 drum available before I return to eBay to search.

Located in Philadelphia, PA, USA 19107. Please PM me with what you have.

 

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[MattKing]

IIRC there was one recently here in the APUG classifieds.

 

[ignatiu5]

IIRC there was one recently here in the APUG classifieds.

Thanks, not sure how I glossed over my search results and missed that one. I've PM'd that seller.

 

[ignatiu5]

bump

Ilford base arrived last week, still looking for a 16x20 Cibachrome drum.

 

[polyglot]

Try a Jobo 3063, does up to 20x24, and seems to hover around $100-$130 in price. No idea how it will integrate with your Ilford base.

 

[George Nova Scotia]

Remembered this box last night. The big drum is 20" from the inside of the end caps and about 19.5" outside diameter. Is this what you're looking for or is there another smaller 16x20?

 

[ignatiu5]

Remembered this box last night. The big drum is 20" from the inside of the end caps and about 19.5" outside diameter. Is this what you're looking for or is there another smaller 16x20?

I think that's it. PM sent.

 

[trythis]

I have something smaller from cibachrome. It has odd caps that have recessed cones, are they useable for b&w paper development?


Typos made on a tiny phone...

 

[Konical]

Good Evening, trythis,

Shouldn't be any problem. The only drawback of the Cibachrome drums is that they're completely smooth inside, so prints smaller than the nominal size the drum is designed for can't be easily separated. The end cap design was specifically designed for the small amount of expensive Ciba chemicals used for their color process. Personally, I like to use a more generous amount of solution both for film and print processing in a drum, so I prefer the Chromega drums, but I'm probably just being a bit conservative.

Konical

 

[ignatiu5]

bump

 

[tsjanik]

I have a near new Beseler 16x20 drum and a Unicolor 11x14. Each will process 8x10 (4 and 2 respectively). Let me know if you're interested.

I haven't posted here before, but if you search my user name, you'll see activity in other forums.

 

[FritsM]

Just a personal experience note on processing multiple smaller sizes in large drums.


I've used the 3063 drums on a Jobo CPP2 and could get very decent R-3 prints from it, using at least a quart of solutions.
I think I had to resort to processing at somewhat reduced developer temperatures for a longer time to get more even development and no streaks. I may have used a water pre-run/soak, not sure.


Now when I processed a batch (again R-3) of 6 identically exposed 8x10 prints in that same drum, I noticed slight color and density deviations in prints from lid to bottom, even across. For most pictorial prints that worked fine but for those that needed very critical color balance (e.g., almost monochromatic, snow scenes) the results were unacceptable to me. When you placed them side by side they were all a bit different.


That's when I started using a "split" Durst Printo machine for anything R-3 not exceeding 12" in one direction. Consistency was close to perfect with that method. "Split" refers here to a manual wash in the dark between 1st developer and re-exposure, before adding to the color developer tank. Bleaching and Fixing was usually done in heated trays, or another Printo section.

That said, depending on how accurate and even you want your film to be, gang-processing in a large drum may not live up to your standards.

The Jobo revolver chamber Expert tanks excel in evenness, even on a roller base without a water jacket. Sadly, they are scarce and the price is high.
Now one could fabricate something like them from 5 or 6 BTZS-type tubes bundled together...
Or process a bunch of smaller (BTZS-type) tubes in a tray with water. Or on your roller base. Perhaps tubes with large enough diameter for 2 8x10 sheets facing each other?

 

[Sirius Glass]

I have worked with Steve and Norma Smith for years. They have a vast array of tanks and drums available. http://www.darkroomdoctor.com/

 

[ignatiu5]

Drums from tsjanik arrived safely. Thanks everyone!

 

[Keepfilmalivetyler]

I believe I have one! I'll check when I get back to the house, I have two sizes and one set of caps never used