C-41
Kodak Portra 400
Widely regarded as the industry standard for professional colour work. Vision3 technology provides exceptionally fine grain and impressive exposure latitude.
ISO
400
Formats
4
35mm, 120, 4x5, 8x10
Process
C-41
Type
Color
Characteristics
Grainvery fine
Contrastmedium
Latitudeexcellent
Saturationmoderate
Reciprocity Failure
Compensation Formula
t' = t1.35
Kodak advises testing >1s, but community consensus settles on ~1.35 exponent.
Often Used For
weddingscommercial editorialtravel
Descriptions combine manufacturer specifications with community experience. Subjective assessments reflect common sentiment among photographers and may not match your results.
Last verified: Jan 2026Report an error