Kodak BW400CN
Chromogenic C-41 B&W film with wide latitude, Kodak's competitor to XP2.
ISO
400
Formats
3
35mm, 120, 220
Process
C-41
Type
B&W
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.
No manufacturer reciprocity data found; test or bracket long exposures.
Development Times
BW400CN 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 →Help improve this page. Some information for this film is limited. If you have experience shooting BW400CN or know of published data we're missing, we'd love to hear from you.
Get in touchDescriptions combine manufacturer specifications with community experience. Subjective assessments reflect common sentiment among photographers and may not match your results.