TMAX 100 developing time

mmerig · Nov 4, 2014

I shot a roll of Kodak Professional T-Max 100 film (135-24 100 TMX) at box speed (with some deliberate overexposure when needed). A friend gave me the film, which had an expiration date of 08/2005. It was stored well, so I am not that concerned about its age. What I am confused about is the recommended development time. I use Ilford ID-11, which I equate with D76.

Kodak's film packaging that came with the roll recommends 6.5 minutes in D76 at 20 C, but the dilution is not indicated.

For ID-11 at 1:1 at 20 C, Ilford recommends 11 minutes for TMAX 100, but I am not sure if it is for the old or new version.

I searched the forums, but could not find anything on this.

My best guess is to develop for 11 minutes in 1:1 ID-11 at 20 C. Will this work well?

Thanks

Hatchetman · Nov 4, 2014

Kodak spec sheet:
D76 1:1 9.5 minutes at 68degrees

http://www.kodak.com/global/en/professional/support/techPubs/f4016/f4016.pdf

flavio81 · Nov 4, 2014

mmerig said:
Kodak's film packaging that came with the roll recommends 6.5 minutes in D76 at 20 C, but the dilution is not indicated.

When it just says "D76", it is assumed to be straight (undiluted) D76.

mmerig · Nov 4, 2014

Thanks, 9 1/2 minutes at 1:1 makes sense. Perhaps ID-11 is different enough from D76 to warrant the 11 minutes that Ilford recommends.

Has anyone used ID-11 with TMX 100? What development time do you use?

Xmas · Nov 4, 2014

Ilford may be planning on negatives with more contrast there is little difference between the D76 clones.

The times given are suggestions not stones like 10 commandments.

mmerig · Nov 5, 2014

Thanks to all for the advice.

I use Ilford's agitation scheme for ID-11 for roll film in spiral reels: 4 inversions in first 10 seconds, and the same at each subsequent minute. (Kodak's is 5 seconds every 30 seconds). So I'll develop TMAX along with some FP4 at 11 minutes.

I know that the development times are recommendations and not carved in stone, its just that Ilford's information on TMAX was vague, while Kodak's was absent on ID-11, and I was not sure how similar D76 and ID-11 were.

flavio81 · Nov 5, 2014

Xmas said:
Ilford may be planning on negatives with more contrast there is little difference between the D76 clones.

The times given are suggestions not stones like 10 commandments.

+1

Contrast is the key.

jonasfj · Nov 6, 2014

I am scanning my negatives and my experience is that setting the ISO 1/3 stop lower than box speed and to reduce development by about 30% or 10% for tabular grain films (TMax and Delta) gives good results. This gives a flatter negative, but with more dynamic range. Then, I can increase contrast in Photoshop in case necessary.

TMAX 100 developing time

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