Adox CHS II 100 in Pyrocat HD 1:1:100 Times

[Jurgen Estanislao]

Hello,

Reaching out to the wisdom of the group–I am currently using 14x17 Adox CHS II 100 with Pyrocat HD 1:1:100 and I was wondering what is a good developing time to get good density for PT printing.

Appreciate the help / experiences.

Jurgen

 

[awty]

Have no experience with Adox.
Probably similar to any 100 iso film
If you're tray developing it will be harder to over develop than under develop. Drum developing you need to be more cautious with building up high light density.
Depends more on your film exposure.

 

[Andrew O'Neill]

I shot this stuff a few years ago, and developed in Pyrocat-HD for Kallitype printing. You think I can find my data? I even had curves drawn out! If I can find them, I'll let you know...

 

[Jurgen Estanislao]

Tj

I shot this stuff a few years ago, and developed in Pyrocat-HD for Kallitype printing. You think I can find my data? I even had curves drawn out! If I can find them, I'll let you know...

That would be much appreciated.

 

[Jurgen Estanislao]

Have no experience with Adox.
Probably similar to any 100 iso film
If you're tray developing it will be harder to over develop than under develop. Drum developing you need to be more cautious with building up high light density.
Depends more on your film exposure.

Yeah this is my first guess. I guess I would have to try it out to gauge.

 

[Andrew O'Neill]

Sorry, I cannot find it. If I were you, I'd shoot a sheet at EI 64, and develop it 1+1+100 for 9.5 to 10.5 minutes. I did find my data for 1+1+50 dilution, which is pretty strong. N time is 3:30 for rotary. I haven't tested it in the field because because of the short development time.

 

[Jurgen Estanislao]

Sorry, I cannot find it. If I were you, I'd shoot a sheet at EI 64, and develop it 1+1+100 for 9.5 to 10.5 minutes. I did find my data for 1+1+50 dilution, which is pretty strong. N time is 3:30 for rotary. I haven't tested it in the field because because of the short development time.

I was thinking within those numbers. I have tried processing at 13-16min and negatives are dense despite exposing for the shadows.

I will test this.

 

[GregY]

I was thinking within those numbers. I have tried processing at 13-16min and negatives are dense despite exposing for the shadows.

I will test this.

the negatives are dense because shadows take added exposure... so you've got lots of exposure & then 13-16 overdevelops the film. Like Andrew i also use pyrocat.... & average 9 minutes for 120 roll film..... a little more for sheet film in trays

 

[Jurgen Estanislao]

the negatives are dense because shadows take added exposure... so you've got lots of exposure & then 13-16 overdevelops the film. Like Andrew i also use pyrocat.... & average 9 minutes for 120 roll film..... a little more for sheet film in trays

Sounds good. Thanks! Definitely overdeveloping too.