Kodak T

Kodak T-Max 100 (D-76) Development Chart

Testing Conditions:

Hasselblad 501CM + CFi150/4 + A12 magazine
Sekonic L-508 1^o Spot meter
Stainless Steel Tank processing, agitate continuously in the 1^st minute and every 10 seconds (inverted 10 times) at 60 seconds interval
Kodak D-76 Developer (1:1) at 20^oC
Kodak Indicator Stop Bath (1 min)
Kodak Rapid Fixer (10 min)
X-Rite Densitometer 311

Observation

The 12 minutes development time is Kodak' recommendation but I find it to be N+1. The Zone I density also suggest the exposure index to be 80.

By looking at the characteristic curve, it has a more gentle shoulder region than the one developed by T-Max (1:4). Therefore, a better highlight latitude is expected.

Density Table (above Dmin+fog)

Exposure Index	64	64	64	80	80
Development Time (min)	8.5	9.25	10.5	12	14.75
Development	N-2	N-1	N	N+1	N+2
Dmin	0.08	0.08	0.09	0.10	0.10

Zone	Density (above Dmin+fog)
O	0.02	0.02	0.03	0.03	0.03
I	0.10	0.11	0.12	0.14	0.12
II	0.23	0.26	0.29	0.34	0.33
III	0.39	0.43	0.48	0.57	0.60
IV	0.54	0.60	0.66	0.78	0.89
V	0.72	0.79	0.86	0.99	1.12
VI	0.80	0.89	0.99	1.17	1.25
VII	0.96	1.05	1.15	1.33	1.47
VIII	1.10	1.20	1.29	1.48	1.67
IX	1.21	1.31	1.41	1.61	1.85
X	1.29	1.40	1.52	1.74	2.06
XI	1.42	1.54	1.67	1.91	2.19

Contrast (III-VIII)	0.47	0.51	0.54	0.61	0.71
Contrast (I-X)	0.44	0.48	0.52	0.59	0.72

Comparison Chart

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