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IMAGE STRUCTURE
The following information was generated using the old
versions of these films. Granularity testing of old and new
films in several other developers suggests this information
should also be valid for the new versions.The data in this
section is based on development in KODAK HC-110
Developer (Dilution B), 68°F (20°C).
KODAK Film
KODAK PROFESSIONAL TRI-X 400 Film
KODAK PROFESSIONAL TRI-X 320 Film
*
Read at a net diffuse density of 1.0, using a 48-micrometre aperture,
12x magnification.
10
CURVES
200
100
Diffuse rms
*
Granularity
17 (fine)
16 (fine)
Note: Modulation Transfer Function and Spectral
Sensitivity were generated using the older version of this
film (KODAK TRI-X Pan Fim 5063). Preliminary data
suggests this information would be applicable to the new
TRI-X Films.
KODAK PROFESSIONAL TRI-X 320 and 400 Films • F-4017
Modulation Transfer Function
70
50
30
20
10
7
5
Exposure: X
Process:
3
KODAK PROFESSIONAL Developer D-76,
Large Tank
2
Densitometry:
Diffuse Visual
1
1
2
3 4 5
10
SPATIAL FREQUENCY (cycles/mm)
Spectral Sensitivity Curves
4.0
Effective Exposure:
0.5 sec.
Densitometry:
Diffuse Visual
3.0
2.0
1.0
D=0.3>Gross Fog
D=1.0>Gross Fog
0.0
250
300
350
400
450
WAVELENGTH (nm)
*Sensitivity = reciprocal of exposure (erg/cm ) required
to produce specified density
20
50
100
200
600
500
550
600
650
700
750
2
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