Film · Black and white negative
Kodak T400 CN
Chromogenic black-and-white film with T-GRAIN emulsions for Process C-41, printable on black-and-white or colour paper. Kodak claims high-quality prints from negatives exposed at EI 25 to 1600; its April 2003 sheet marks it discontinued in favour of BW400CN.
Kodak F-2350 (April 2003) marks it discontinued; Wikipedia gives an end date of 2004. Wikipedia also lists 220 and 4x5 sizes.
- Box speed
- ISO 400
- Process
- C-41
- Formats
- 35mm, 120
- Grain
- Very fine
- Latitude
- Good
- Reciprocity
- Not published
Characteristics
Reciprocity failure
No official data available. The manufacturer hasn't published reciprocity specifications for this film.
For long exposures, try starting with a 1.3 exponent (t' = t1.3) as a baseline and bracket your shots. This is a reasonable middle ground that works for many films.
Kodak F-2350: no compensation needed from 1/10,000 to 120 s; exposures longer than 120 s not recommended.
Development times
T400 CN is developed in standard C-41 chemistry: 3:15 in the colour developer at 37.8°C / 100°F, the same as every other C-41 film. Blix and stabiliser times come from your kit, and pushing typically adds about 30% per stop.
C-41 home development guide →Often used for
Help improve this page. Some information for this film is limited. If you have experience shooting T400 CN or know of published data we're missing, we'd love to hear from you.
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