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Tri-X @200 in HC 110


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#1 Stealth3kpl

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Posted 11 November 2017 - 22:47

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Ladies and Gentlemen. Please offer suggestions for developing my TriX shot at 200, in HC110. Show your examples too.

Thanks.

Pete



#2 tobey bilek

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Posted 16 November 2017 - 05:50

KodakAlaris time For dil B, 1:32,  is 3.75 minutes.  Pretty short but no different from C41 which I used to do in a small tank.  Rule of thumb is -20% at one half box speed.  It never fails me.

 

If you want a longer time,  1:64 ,  increase time by 50%.  I am basing this on D76 and D76 1:1 tri x.

 

3.75 x60 = 225 sec   225x1.5= 436 sec    436  -20% = 349 sec   back toi minutes  5.8 minutes.  

 

I would use other developer like D76

 

Well I just checked my chart for D76 and found I had a time for HC110.      1.45 dilution for 4.5 minutes for a condenser enlarger or scanner.   Add 10% for diffusion enlarger.    

 

I use Chicago water, calibrated thermometer, agitate 5 sec every 30.   Film is dropped into prefilled tank  and agitation begins immediately.    Pour out 15 sec before end of time.  Invert 4 times in 5 sec.  Leave room in tank so developer can move.  With plastic tanks,  just pour in as fast as it will go.  They fill nicely bottom up.   Stainless does not wet the film fast and even if you pour in through the top.  You will get marks at your own peril unless you drop in.

 

I have no samples as I have not used HC110 for decade.  I would run 12" or 6 exposure strip to get a start incase your water or thermometer enlarging lens contrast is different.  There are a ton of variables.

 

For what it is worth,  my times match Kodak times perfectly.  That means my equipment is perfect or there are balancing errors.  

 

Good luck


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#3 adan

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Posted 22 November 2017 - 08:47

I usually use root-2 for figuring 1-stop pull or push developing - e.g. for ever minute of normal time, use 1.4 minutes to push 400 to 800, or use 0.7 minutes (43 secs.) to pull 400 to 200. That's a 30% reduction compared to Tobey's 20%. Not a large enough difference to be critical (Tri-X is rather forgiving), so take your pick.

 

Some users have always been suspicious of Kodak's very brief listed time for "new" (post-2003) TX in HC-110 anyway - I've always used the same base time as for TMax 400 in HC-110 (5.5 minutes @ 20°C @ 400). It works.

 

Which would give 0.7 x 5.5 = 3:50 minutes @ 20°C @ 200.


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#4 Stealth3kpl

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Posted 26 November 2017 - 13:30

What am I missing here? The Massive Development chart suggests TriX 400 @200 in HC110 B for between 4.75 mins to 6.75 mins. Some one on a blog I follow has used TriX at 200 in HC110 B for 7minutes, yet, as you both point out, Kodak suggests 3.75mins when shot at 400. All times are for 20C. I'm very confused!!

 

Pete



#5 Jeff S

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Posted 26 November 2017 - 15:30

Do some film speed tests using your own consistent workflow and assess. Just like any other photo procedure. Real shutter speeds, metering results, etc. often vary by camera. Maybe 200 should be 250 or other for your circumstances. Same with development times; test using your own consistent procedures... temp, agitation time and method, etc. and assess.

Guidelines give a good starting point. Actual tests will nail your situation, if you're picky and determined to find the 'best' approach for you. There are many variables that affect outcomes in a total workflow. But the world won't collapse if you're in the ballpark, as this film and developer are somewhat forgiving..

Jeff

Edited by Jeff S, 26 November 2017 - 15:31.

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#6 Michael Hiles

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Posted 26 November 2017 - 18:32

Do some film speed tests using your own consistent workflow and assess. Just like any other photo procedure. Real shutter speeds, metering results, etc. often vary by camera. Maybe 200 should be 250 or other for your circumstances. Same with development times; test using your own consistent procedures... temp, agitation time and method, etc. and assess.

Guidelines give a good starting point. Actual tests will nail your situation, if you're picky and determined to find the 'best' approach for you. There are many variables that affect outcomes in a total workflow. But the world won't collapse if you're in the ballpark, as this film and developer are somewhat forgiving..

Jeff

 

I endorse Jeff's advice completely. The best approach comes from your well ordered tests using your equipment and detailed approach.


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#7 adan

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Posted 26 November 2017 - 20:06

What am I missing here? The Massive Development chart suggests TriX 400 @200 in HC110 B for between 4.75 mins to 6.75 mins. Some one on a blog I follow has used TriX at 200 in HC110 B for 7minutes, yet, as you both point out, Kodak suggests 3.75mins when shot at 400. All times are for 20C. I'm very confused!!

 

Pete

 

Always assume "human error" - and you will rarely be confused in this life. ;) The consensus has always been that Kodak simply screwed up in listing the 3.75-minute time for TX400/HC-100( B ).

 

Possibly that is a correct time for the more concentrated "A" dilution, that crept into the paperwork for "B". Or perhaps just a typo for "6.75" or "5.75" minutes.

 

Here is a 2002 data sheet for HC-110 (just before the "new" Tri-X was introduced). Ektapan film in dilution "A" is - 3.75 minutes - interesting coincidence. Ektapan in "B" is 6 minutes. Equally - the time for roll-film TX in A is - 3.75 minutes ;) ;) ;)

 

Tri-X roll (i.e. 35mm, 120) film gets 7.5 minutes @ 68F/20C in "B" - very consistent with what most people use today with the new emulsion.

 

http://imaging.kodak...emistry/j24.pdf


Edited by adan, 26 November 2017 - 20:12.

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#8 Frank Sellitto

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Posted 15 December 2017 - 16:10

Hi Pete,

 

I rate tri-x @ 250 and develop in HC-110 1:49 for 8 minutes

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