Kodak 7219, SO-219, 5219 manual Modulation-Transfer Function Curves, Diffuse rms Granularity Curves

Modulation-Transfer Function Curves

200

	100
	70
	50
	R
	30
(%)	G
	20
RESPONSE	5
	B
	10
	7

3Exposure: 3200K Tungsten

Process: ECN-2

2Densitometry: Status M

1

1	2	3	4 5	10	20	50	100	200	600
TI2647B			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					B
	Blue Density				G
	Green Density
	Red Density
	Blue Grain
2.0	Green Grain				R
	Red Grain				0.10
					0.05	GRANULARITY
					0.04
			B		0.03
					0.02
1.0			G		0.01
DENSITY
			R		0.006	SIGMA
					0.005
					0.004
					0.003
						D
					0.002
0.0					.001
0.0	1.0	2.0	3.0	4.0	5.0
TI2647C		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.4

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

			Spectral Sensitivity Curves
	4.0
*	3.0			Yellow-
				Forming
SENSITIVITY								Layer
				Layer
						Magenta-
	2.0					Forming		Cyan-
							Layer	Forming
LOG	1.0
	Effective Exposure: 1/25 sec
	Process: ECN-2
	Densitometry: Status M
	Densitry: 0.2>D-min
	0.0
	250	300	350	400	450	500	550	600	650	700	750
					WAVELENGTH (nm)
		*Sensitivity = reciprocal of exposure (erg/cm2 ) required
	TI2647D			to produce specified density

These curves depict the sensitivity of this film to the spectrum of light. They are useful for determining, modifying, and optimizing exposure for blue- and green-screen special-effects work.

Spectral Dye Density Curves

	1.8
	Process: ECN-2;D-mins subtracted
	1.6
DENSITY	1.4
	1.2	Midscale Neutral
	1.0	Cyan	Magenta			Yellow
SPECTRAL
	0.8
	0.6
DIFFUSE
	0.4
	0.2					Minimum Density
	0.0
	-0.2
	400	450	500	550	600	650	700	750	800
TI2647E				WAVELENGTH (nm)

These curves depict the spectral absorptions of the dyes formed when the film is processed. They are useful for adjusting or optimizing any device that scans or prints the film.

Note: Cyan, Magenta, and Yellow Dye Curves are peak-normalized.

4 KODAK VISION3 500T Color Negative Film 5219 / 7219 / SO-219 • H-1-5219t