PyrocatHD for TRI-X for AZO and for Kalitype

[fhovie]

This is really one for Sandy King but I know I am not trying something that is not already done for many or you. I read Sandy's fine artical on PyrocatHD and noticed he did not put the curves in for TRI-X on the UV Channel. So I am looking for a starting point.

Senario 1:
PyrocatHD 1:1:100? for TRI-X sheet film in a tank - hand agitated for regular silver prints with a condenser head:

Is it ASA 320 for N at 70deg for 8min30sec?

Senario 2:
PyrocatHD for TRI-X sheet film - 8x10 in a tray. Contact printing for AZO 2:2:100?
What is the N filmspeed and dev time? (will the negs be usable for Kalitye?)

 

[juan]

I've recently shot OLD Tri-X (2x3) at 200 and developed in PyroCat HD 2:2:100 for 18-minutes for printing on Azo. I have not used the new Tri-X in sheet film, but for roll film, I use the same times as I did with the old stuff. I should point out that I exposed for shadows on Zone IV, so that, plus the somewhat long development produced a very dense negative for Azo printing. I posted a scan in the critique gallery the first part of December.

I have no idea about Kallitype.
juan

 

[sanking]

I read Sandy's fine artical on PyrocatHD and noticed he did not put the curves in for TRI-X on the UV Channel. So I am looking for a starting point.

I did not have a densitometer capble of UV readings the last time I tested TRI-X so I don't have UV data. And, my last tests were with the old TRI-X. I have not yet tested the new TRI-X.

For TRI-X (at least the old variety) and AZO I would use the 2:2:100 dilution of Pyrocat-HD. With subjects of normal brightness range you should get enough contrast for AZO with about 16 minutes of development at 70F. This should give you a negative that will also print well in kallitype (using ferric oxalate). With vandyk (using ferric ammonium citrate) you need more contrast so increase times to 20 minutes or even more.

 

[bmac]

Has anyone done any testing with the "new" tri-x yet?

 

[sanking]

Has anyone done any testing with the "new" tri-x yet?

I tested the new TRI-X 320 recently. Not much difference between the new and the old in terms of contrast and shape of curve as far as I can observe.

Sandy King

 

[Tom Duffy]

Brian,
I've been using new tri-x in 8x10. Pyrocat HD at 2:2:100 in a Jobo at 68F for about the last month.
No densitometer, but I'm suprized at the my increase in development times vs. old tri-x.
For old tri-x my times were 6 min in a high contrast situation and 8 min in a low contrast situtation (the extent of my zone system!).
New tri-x seems to require 7 min high contrast(about a 15 percent increase and kind of in line with most of what I've read), but 10 min low contrast (a 26% increase!) when I print on AZO.
Some of this might be filmbase + fog, since I use a motor speed of "3" because my motor doesn't have enough torque when I use a lower speed.
Take care,
Tom

 

[bmac]

cool, thanks for the info guys.