Dilution of T-max RS

[pemongillo]

After receiving several mostly polite tongue lashings last month regarding my lack of interest in doing my own film and develper testing, my left brain has kicked back in and I have decided to bite the bullet. I am planning on testing tri-x and t-max 100 with t-max rs developer. I may also do HC-110. HC-110 is regularly diluted, but I have yet to stumble across anyone who has diluted t-max rs developer. I can figure this out on my own, but don't really want to put the time in if some of you have found that diluting t-max rs doesn't work. Have any of you done this exercise and if so, any advise on starting dilutions and times? For a first shot I thought I would just go one to one on the stock solution and double develping time.

 

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PS Does this thing have a spell checker somewhere ?

[triblett_lungre_thurd]

Paul,

 

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I try never to dilute and one-shot everything. Tmax RS is one of my

tested developers. You'll notice the times don't allow for much

contraction. This is when i change to perceptol. Just Me. Tri-x

looks absolutely gorgeous in RS. I expose it from 320 to 200 and tray

develope in undiluted RS for a minimum of 5 min. at 68f a good place

to start. Large format is worth the waste. Start with one developer

and hammer it down then go to HC-110 and test it. Don't chase your

tail. Good luck

[christopher_cline]

Hi Paul

 

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I use T-Max 100 4x5 film with T-Max RS developer. I regularly use

different dilutions depending on whether I want N-2, or N, or etc.

type development. I do not mix a stock solution, but instead mix my

one-shot working solution straight from the syrup concentrate (which

has the RS packet contents poured and mixed into it). For 5x7 tray

development @ 24 Celsius (75 Fahrenheit), I use

 

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Development T-Max RS Water Time

N-2 (1-19) 50ml 950ml 15m30s

N-1 (1-9) 100ml 900ml 9m20s

N (1-9) 100ml 900ml 12m40s

N+1 (1-9) 100ml 900ml 17m30s

N+2 (1-4) 200ml 800ml 12m10s

 

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Hope this helps as a starting point.

 

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http://risky.wcslc.edu/pers_pages/c-cline/cline.html

[christopher_cline]

I'm going to try the table one more time:

 

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Development T-MaxRS Water Time

 

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N-2 (1-19) 50ml 950ml 15m30s

 

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N-1 (1-9) 100ml 900ml 9m20s

 

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N (1-9) 100ml 900ml 12m40s

 

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N+1 (1-9) 100ml 900ml 17m30s

 

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N+2 (1-4) 200ml 800ml 12m10s

[jeff_white1]

I aggree with Chris Cline's recomendations. Many people complain

about T-Max "blocking" which is an incorrect description because it

is such a straight line film. The problem is really too much

contrast, by diluting you are slowing down the process and making it

easier to tame the contrast. Diluting the developer allows for longer

development times and also allows larger errors in development

although I would suggest trying to be as percise as possible. I could

also use a spell checker.

[rob_tucher1]

I use T-MAX RS developer almost exclusively for one-shot development

in Jobo and tubes. It is wonderful for TMX, TMY, Tri-X and HP-5+. I

use it by first mixing in the additive (lots of mixing because the

bottled chemistry is syrupy) and then processing from the bottle in

either 1:4 or 1:9 with water, depending on the subject brightness

range and what I want to end up with. I don't use N + or -, but I can

get the equivalent of N-3 to N+2. For real contrasty conditions I

switch to that Photographers' Formulary TMX developer. But TEST, get

it over with, and then forget it and shoot.

[pemongillo]

Thank you all for taking the time to help me out. I began testing last weekend and have sent my first batch of negatives out for density readings. Wish me luck.