TmaX 100

[cralx2000]

What is the basic difference of these films?

Film Developer Dilution ASA/ISO 35mm

TMax 100 [100TMX] D-76 1+1 100 9.5 Minutos


TMax 100 [TMX] D-76 1+1 100-200 12 Minutos

 

[Wayne R. Scott]

2.5 Minutos.

What is the working temperature of these times? I am guessing that the longer time is a lower temperature.

Wayne

 

[cralx2000]

2.5 Minutos.??????????????


68F = 20C

 

[Gabriel M.A.]

12.5 minutos - 9.5 minutos = 2.5 minutos 😉 (actually tres minutos, pero quién está contando?)

 

[Gabriel M.A.]

I don't have a chart handy, but if I recall correctly, TMax 400, developed with D-76 1+1 @ 68F is about 14 minutes. I'd guess then that the 9.5 minutos one is for a higher temperature, like Wayne pointed out, probably 75F.

 

[tetrisattack]

"100TMX" is the new version of T-Max 100, "TMX" is the old version. I believe Kodak re-branded the film when they moved the manufacture of this film to their new b&w plant. The emulsions supposedly underwent a refinement, leading to faster development times.

 

[Gabriel M.A.]

ahhhh...ohhh, you're right, that could be it. There was slight repackaging, and the emulsion did change. Three minutes of development is significant. It's not the same time for all emulsions at all temperatures with all developers.

 

[cralx2000]

So for TMAX 100 (5052) I have to use the 12 minutes instead 9.5 minutes?

 

[Wayne R. Scott]

So for TMAX 100 (5052) I have to use the 12 minutes instead 9.5 minutes?

You don't HAVE to follow it exactly. Much depends on how you expose your film. It is just a beginning point that works for "normal" exposure. You really should test your methods to find "your" working iso and normal development times.

Try it and see what happens. You will have images on your film.

Wayne

 

[phototone]

For me, I get better results from T-max if I don't process it as long as factory times.