TX400 and HC110

[Henry Alive]

I hope this information could be useful for everybody in this forum. I would ask you to share any other similar information that you could have.

I have been studying this combo for a while, and these are the results that I have found:
Film: TX400, 35 mm.
EI 200
Pre-washed: Water, during 1 minute of constant agitation.
Developer: HC110 (E- 1:47)
Developed two rolls of film, continuous agitation during the first 30 seconds, and then 5 times each 30 seconds.
Time of developing: 6 minutes.
Temperature: 20ªC.
Stop bath: Kodak Max Stop, 1:15, and 1 minute with constant agitation.
Fixer bath: Tetenal, 1:9, 5 minutes. The first minute with continue agitation, and then 5 times each 30 seconds.
Results:
After having taken pictures of a Kodak grey card, I have found the following relative densities:
Zone 5: 0,68
Zone 1: 0,10
These densities have been measured with my RH Designs Analyzer Pro.
My conclusions:
For my working system I can say that TX400 (EI200) and HC110 (E), 6 minutes developing time, are perfect.

[Uhner]

Interesting. I have not done any thorough testing on this combination, but my tentative results on TX and HC 110 1+ 50 are similar.

[justpete]

I just finished testing a number of film and dev combinations with 400TX and HC110(D) being one of them.

EI=250 w/grey card exposures at -3, 0, +3 stops approximating zones II, V, and VIII.

Using a ProcessMaster II for temp comp in a tempering bath and verifying dev temp was within a few tenths C of the water the film densities above b+f for a 5.6min development were 0.11, 0.66, 1.23 agitating for the first 60s and for five inversion cycles every minute. Measurements were made with a ZoneMaster II and b+f was 0.18, which wasn't much different at 6.8 minute develop test time.

Stop for 60s constant agitation in a solution of PF TS-4 diluted 1:14 with distilled water (one shot) and fixed for 10.5 minutes (3x clearing time from snip tests) with agitation for the first minute and ten inversion cycles every minute thereafter in a solution of PF TF-4 diluted 1:14 with distilled water (one shot), both maintained at temp in the same tempering bath.

Washed using Ilford method (but double the number of inversions in each cycle), again using distilled water held in tempering bath. Tests using sodium sulfide solution and PF residual hypo test solution showed no staining on several of the film strips, fwiw.

I used dilution D to keep concentrate amount at or above 6ml per 250ml of developer solution to optimize capacity in a single reel spiral tank and it looks like the results aren't far off of yours. Thanks for posting, I was beginning to wonder if my tests were valid as this diultion seemed way more active than I'd expected it to be.

[BrianPhotog]

Hmm...1+32 for 6:30 @20C EI320 has always worked for me...

[Michel Hardy-Vallée]

Thanks for sharing, those can always be useful for people looking for a starting point. For my 35mm work, I prefer XTOL because I find HC-110 depresses the midtones a bit too much. It's useful in MF, though, especially when I have a scene that has its tones mostly at either end of the B&W spectrum.

[ElrodCod]

Many years ago a zone I film test put (old) Tri-X @ an I.E. of 200 in my Nikon F and I.E of 250 in the F2 in Picker's recommended HC110 dilution. Sorry...I don't remember what that was but it worked quite well when the developing time was dialed in, which I do remember was 5¾ minutes. Very close to what Henry's doing now. Sounds good to me.

[Henry Alive]

I always work with TX400 (EI200) developed with HC110 (1:47) for 6 minutes, 20ªC, and printed in a condenser enlarger. You can read what I wrote some months ago here:
http://www.apug.org/forums/forum37/6...-x-film-2.html
I hope it can help.
Henry.

[2F/2F]

I am just trying to figure this out myself. Kodak's bizarre developing time of 3:45 for dilution B at 400 has to be way off. I will not downrate my film, however. I use box speed with incident metering, my preferred method.

Your method (dilution E for 6 minutes at EI 200) sounds about right if the time for dilution B at EI 400 is 6:30, which I have gathered that it is from Ilford's recommended time using their Ilfotec HC (which is near identical to HC-110 IME). Sounds like it would be very close to a time published by Kodak for dilution E, if there was such a thing. (Is there? I have never seen it.) 6 minutes is probably just about the starting time I would extrapolate for an initial test if I wanted to use Tri-X at EI 200 and HC-110 dilution E.

[Rolleiflexible]

Film: TX400, 35 mm.
EI 200
Pre-washed: Water, during 1 minute of constant agitation.
Developer: HC110 (E- 1:47)
Developed two rolls of film, continuous agitation during the first 30 seconds, and then 5 times each 30 seconds.
Time of developing: 6 minutes.
Temperature: 20ªC.

This is the recipe I've used to process all my
Tri-X (thousands of 120 rolls) over the years.
An old photographer passed it on to me, but
described it as 5/8 ounce of HC110 syrup into
900 ml of water. I just now did the ratio, and
found that (surprise) it works out to 1:47.

I agree, the recipe gives great results -- plenty
of shadow detail without cooked highlights.

[pgomena]

Yep, falls right in the range of my experience. Tri-X 35mm, EI 200-250, HC-110B, 68 degrees, presoak, 30 seconds initial agitation, two gentle inversions on the 30 seconds for a total of 5 minutes. I used this process primarily for a cold-light diffusion enlarger.

Peter Gomena