User Manual
KODAK TRI-X Reversal Film 7266
Revised 04-13
Printed in U.S.A.
KODAK TRI-X Reversal Film 7266
KODAK Publication No. H-1-7266t
rms Granularity
Read with a microdensitometer using a 48-micrometer
aperture.
The “perception” of the graininess of any film is highly
dependent on scene content, complexity, color, and
density. Other factors, such as film age, processing,
exposure conditions, and telecine transfer may also have
significant effects.
rms Granularity Curve
To find the rms Granularity value for a given density, find
the density on the left vertical scale and follow horizontally
to the characteristic curve and then go vertically (up or
down) to the granularity curve. At that point, follow
horizontally to the Granularity Sigma D scale on the right.
Read the number and multiply by 1000 for the rms value.
Note: This curve represents granularity based on modified
measuring techniques.
Note: Sensitometric and Diffuse RMS Granularity curves
are produced on different equipment. A slight variation in
curve shape may be noticed.
Granularity vs. Density (0-3 scale)
Reversal Process
0.006
0.01
0.001
0.002
0.003
0.004
0.005
0.10
0.05
0.04
0.03
0.02
Granularity SIGMA D
Density
Grain
LOG EXPOSURE (lux-seconds)
1. 00.0
0.0
DENSITY
0.2
2.0
3.0
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
3.2
3.4
Spectral Sensitivity
These curves depict the sensitivity of this film to the
spectrum of light.
Spectral Sensitivity Curve
MORE INFORMATION
Outside the United States and Canada, please contact your
Kodak representative.
You can also visit our web site at www.kodak.com/go/
motion for further information. You may want to bookmark
our location so you can find us easily the next time.
Note: The Kodak materials described in this publication for
use with KODAK TRI-X Reversal Film 7266 are available
from dealers who supply Kodak products. You can use
other materials, but you may not obtain similar results.
H-2 Cinematographer’s Field Guide
H-845 The Essential Reference Guide for Filmmakers
H-24 Manual for Processing KODAK Motion Picture Films,
Processing Black-and-White Films, Module 15
H-61 LAD—Laboratory Aim Density
H-606 KODAK Telecine Tool Kit and Reference Manual
LOG SENSITIVITY
-1.0
0.0
1.0
2.0
3.0
700 750650600550500450400350300250
*Sensitivity = reciprocal of exposure (erg/cm ) required
to produce speci ed density
WAVELENGTH (nm)
2
Diffuse visual
Process:
Eective Exposure:
Sensitometry:
Recommended Reversal at 76F (24C)
1/10 sec
Density:
1.0>Gross Fog
Kodak, Eastman, Keykode, Tri-X, and Wratten are trademarks.