Developing Tmax 100 with TMAX....underdeveloped?

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I have tried two rolls of tmax 100 and have used the dilution 1 part TMAX and 4 parts water. Is that right? Because I have been getting underdeveloped negatives. I developed it at 75f for 7.5 minutes and that's what I got. I am going to go and try a higher concentration and see if that works but can anyone help me????

-- John Jensen (superfilmguy@hotmail.com), August 25, 1999

Answers

I haven't been using T-max developer any more lately, but the dilution sounds right, and the time does seem plausible, too. Can you exclude other sources of error, such as developer exhaustion?

I remember that 1 l of t-max 1+4 is supposed to last for a dozen 35 mm films, but you have to develop the 5th to 8th films one minute longer than the first four, and the 9th to 12th another minute longer!

Also, T-max conc. in an open bottle won't live forever!

-- Thomas Wollstein (thomas_wollstein@web.de), August 25, 1999.


You can increase development time (the manufacturer's time is just a starting point) and check your thermometer. I much prefer Xtol for Tmax films.

-- Tim Brown (brownt@ase.com), August 26, 1999.

Are you sure your film speed is correct for your equipment? Processing will give you your highlights but your exposure gives you the shadows which for Tmax is thin at best. James

-- james (james_mickelson@hotmail.com), September 03, 1999.

I have used T-max film and T-max developer since its inception. I use same dilution as suggested 1/4. I develop at 75F, and agitate,every 30 seconds, vigorously for 5 seconds, the key word vigorous. I process for 6.5 minutes. I do not use the "soup" again. I start from scratch. My neg's are consistent in that I rarely have to print on other than #2 or #2.5 filters. I believe your problem is in the agitation. Maybe not. best of luck. cliff watkins

-- Cliff Watkins (Cliffwatkins@hotmail.com), September 06, 1999.

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