Kodak H-1-7299T manual Sensitometric Curves, Modulation-Transfer Function Curves

CURVES

Sensitometric Curves

Log Exposure (lux seconds)

-3.6	-3.0	-2.4	-1.8	-1.2	-0.6	0
3.0
Exposure: 3200 K Tungsten 1/50 sec
Process: ECN-2; Status M
2.0
1.0
B
G
R
0.0
-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9
			Camera Stops

The curves describe this film's response to red, green, and blue light. Sensitometric curves determine the change in density on the film for a given change in log exposure.1

Modulation-Transfer Function Curves

1000

Exposure: Tungsten 3200 K;

Process: ECN-2

	100
(%)			B
RESPONSE
			G
	10		R
	1
	1	10	100	1000

SPATIAL FREQUENCY (cycles/mm)

This graph shows a measure of the visual sharpness of this film. The x-axis, "Spatial Frequency," refers to the number of sine waves per millimeter that can be resolved. The y-axis, "Response," corresponds to film sharpness. The longer and flatter the line, the more sine waves per millimeter that can be resolved with a high degree of sharpness—and, the sharper the film.

Diffuse rms Granularity Curves

	3.0	Process ECN-2
	2.8
	2.6				B
	2.4
	2.2
	2.0				G
	1.8					0.10
DENSITY
	1.6					0.05	GRANULARITY
	1.4				R	0.04
						0.03
	1.2					0.02
	1.0				B	0.01
	0.8				G	0.006
							SIGMA
	0.6				R	0.005
						0.004
	0.4					0.003
							D
	0.2					0.002
	0.0					0.001
	0.0	1.0	2.0	3.0	4.0	5.0

TI2636C LOG RELATIVE EXPOSURE

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.1

1.NOTE: Sensitometric and Diffuse RMS Granularity curves are produced on different equipment. A slight variation in curve shape may be noticed.

4 KODAK VISION2 HD Color Scan Film 7299 • H-1-7299t