Film Data Sheet
Technical Data
Relative Log Exposure
Exposure Time (seconds)
0
.2
.4
.6
.8
1.0
1.2
1.4
1.6
1.8
.001"
.01"
.0001"
.1"
10"
1"
100"
Reciprocity Law Failure
Blue
Red
Green
Modulation
Spatial Frequency (lp/mm)
0
0.5
1
1.5
2
2.5
3
3.5
0
0.2
0.4
0.6
0.8
1
Reciprocity law failure
A wide range of shutter speeds can be used without loss of film speed
or requirements for color filtration. For longer exposure times, some
exposure compensation and filtration is suggested.
Reciprocity
The ability of the film to respond in a
constant manner to a constant exposure
(light intensity x time).
Reciprocity failure occurs during very long
or very short exposures, requiring the
photographer to increase exposure.
Modulation Transfer Function
Spectra Film Family