Ilford film, rotary processing, and HC-110

CCLA · Aug 24, 2017

Finally getting back to processing. I have shot three different films:

Ilford Panf Plus 50
Ilford Delta 100
Ilford Delta 3200

I want to process them in a rotary processor with Kodak HC-110, but I am having trouble finding any base starting points.
Anybody got suggestions as dilution, time, temperature, rotation speed? Should I invert the rotation or no?

thank you
claudio

Alan9940 · Aug 24, 2017

I would start here: http://www.digitaltruth.com/devchart.php and, maybe, cut the development time by 15%, if you start with the times given on the dev chart. You don't say how you're going to do the rotary processing or it what tank so it's hard to give a definitive answer here. Yes, you should ensure to invert the rotation.

bvy · Aug 25, 2017

HC-110 builds contrast quickly under constant agitation. It's why I switched to XTOL. But some folks report satisfactory results. As Alan said, start with the published times and reduce by 15%. Adjust to taste.

CCLA · Aug 25, 2017

Guys, thank you both for the help. I will be developing in a Jobo CPP-2 processor with Lift. The reason I ask for the reversal, I seem to remember from years ago that reversal was to be used for Color (C-41) and Reversal (E6) processes but not for B&W. I could be wrong though.

claudio

Alan9940 · Aug 25, 2017

I have been processing B&W roll and sheet film on my CPP-2 for 20+ years and I've always used reversal spin of the tank/drum. Yes, HC-110 can tend to build contrast quickly; try dilution H. That's what I use for Tri-X and have never had an issue with excessive contrast.

CCLA · Aug 25, 2017

Hi Alan,

I cannot seem to find any information on dilution H. The information I find goes up to dilution F. Can you let me know what the dilution H is from stock concentrate?

claudio

hol571 · Aug 25, 2017

Dil H is half of Dil B (ie 1:63 from syrup) this site has some helpful info about using HC110: http://www.covingtoninnovations.com/hc110/

Tom Kershaw · Aug 25, 2017

Not recently, but I've used Ilfotec HC - which is similar - in a Jobo and found a dilution of 1+49 worked well.

Tom

Ilford film, rotary processing, and HC-110

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