ETERNA 250D Colour Negative Film

In order to simulate conditions closest to practical use, exposure was made under a 5400K light source, through a Fuji SC-41 ultraviolet absorbing filter. Processing was carried out under standard conditions and the three colour densities (status M) were measured. The results of measurements are plotted as characteristic curves.

Processing: Specified standardised conditions
Densitometry: Arbitrary Three Colour Densities
Density: 0.40 above Minimum Density
Sensitivity: Reciprocal of exposure (ergs/cm2)
Required to Produce Specified Density.

*Spatial frequency attenuation characteristic of amplitude relative to rectangular wave chart.
(Presented data is normalised for amplitude of a zero frequency)

RMS Granularity

3.5 (1,000 times the data obtained from measurement taken at a visual diffuse density of 1.0 above minimum density, using a 48um diameter aperture)