Silver halide black-and-white. Sharp, pronounced grain with heavy shadow presence. In continuous production since 1954.
Measured parameters
Crystal size0.5
Luma RMS0.45
Chroma RMS0.15
DistributionBlue noise · multi-octave
Tonal responseShadow 0.4 · Mid 1.0 · Highlight 0.3
Chroma ratio1.5×
Format35mm
ProcessB&W
Visual samples
Tri-X 400 · graded frame · grain applied
400% crop · midtone region
Tonal response · characteristic curve
Comparison
Clean
BEFOREClean footage — no grain
Tri-X 400
AFTERSame frame with Tri-X 400 grain applied