Tri-X vs. Tri-X "Professional" in Sheet Film

[mmcclellan]

Friends,

Is the "old" Tri-x 4x5 film with the 3 v-notch code still available? All I can find is the Tri-X professional with 3 v-notches and a fourth square notch. Both are rated at ASA 320, but I do not know what differences there are between the films.

Any thoughts? Will they ultimately test out to the same exposure index? How does JandC Classic 400 compare to the "old" Tri-X?

I greatly appreciate your help. Thanks!

 

[payral]

http://www.kodak.com/global/en/professional/support/techPubs/f4017/f4017.jhtml#desc

Philippe
Dead Link Removed

 

[Tom Duffy]

Short answer, 'cause i have to get to work. search the archives for "new tri-x" there's stuff there from when new tri-x first came out.

My experience has been that the EI is the same, but the new version requires 15% more development time.
Take Care,
Tom

 

[David A. Goldfarb]

I'm still working through my stock of old Tri-X, so haven't gotten to the new stuff yet.

J&C Classic 400 (same as FortePan 400 and ClassicPan 400 from fotoimpex.de) does have a look that is like the old Tri-X. At the highlight end, you might even prefer it. It is more fragile, though, and requires more careful handling in the darkroom. I recommend trying it, particularly if you process in tanks or tubes, and don't have to worry about the fragility issue as you would if you shuffle the film in open trays.

Here's a sample of Classic 400 in ABC pyro--

(there was a url link here which no longer exists)

I and others have posted more examples in various developers in this thread as well--

http://www.photo.net/bboard/q-and-a-fetch-msg?msg_id=008niK

Use your development times and EI for old TXT as a starting point for Classic 400.

 

[RAP]

The 4x5 sheet film, I have been using it for years. For me, it is the same, no change in film speed or development times. I rate mine at asa 200 in PMK, times used as stated in The Book of Pyro by Hutchings.

 

[fhovie]

It seems to me that the new tri-x is a little flatter and a little finer grain - I do believe an increase in development is indicated - If you are looking for the same old punchy dots for grain - they are a lot smaller now. I use Pyrocat in LF and Xtol in roll film.

 

[Jeremy]

J&C Classic 400 (same as FortePan 400 and ClassicPan 400 from fotoimpex.de) does have a look that is like the old Tri-X. At the highlight end, you might even prefer it. It is more fragile, though, and requires more careful handling in the darkroom. I recommend trying it, particularly if you process in tanks or tubes, and don't have to worry about the fragility issue as you would if you shuffle the film in open trays.

Just a note that J&C400 does NOT build density like (old) Tri-X. I developed 2 shots last night of the same scene where I needed to build up the density--this was an SBR of 5 (N-2 I believe?). The Tri-X looks great but the J&C400 failed this test. The J&C400 is one of my favorite films for SBR 7+ though (and it works great up through the SBR 10.5--the highest I have shot it--N+3.5?)

I may have the zone system notations backwards.