Kodak 2393 Splicing, Standard Products Available, Image Structure, MODULATION-TRANSFER Curve

Sound-Track Printing

Analog and digital sound-track printer setup and control procedures for KODAK VISION Premier Color Print Film / 2393 are similar to Film 2386 / E / 3386 / E, with little or no change required.

Analog variable area positive sound tracks of silver plus dye usually restrict the exposure to the top two emulsion layers by inserting KODAK WRATTEN Gelatin Filters No. 12 and No. 2B* in the light beam. The optimum variable-area sound-track density for the print is between

1.1and 1.8 (read at 800 nm). You can achieve excellent frequency response and a high signal-to-noise ratio in this density range.

Note: With the same soundtrack negative, the print density of VISION Premier Color Print Film / 2393 is about .1 higher than VISION Color Print Film / 2383.

For a variable area positive sound track of silver plus magenta dye only, printed from a negative sound track, restrict the exposure to the top two emulsion layers by inserting KODAK WRATTEN Gelatin Filter No.12 and KODAK Color Compensating Filter 110 Cyan in the light beam. The optimum variable-area sound-track density for the print is between 0.8 and 1.1 (read at 800 nm). This print density will provide a good compromise between signal-to-noise ratio and frequency response.

Use cross-modulation test procedures to determine the density of the sound-track negative required to produce minimum cross-modulation distortion at the optimum print density.

Digital sound-on-film soundtracks (e.g., Dolby Digital and Sony SDDS) are dye only. Consult the system vendor for performance recommendations.

SPLICING

Use tape splices for this film. Since ESTAR Base is impervious to most solvents, cement splices will not work. Keep the knife on the tape splicer sharp and properly aligned with the splicer platen. As the knife is lowered to cut the film, slight leftward pressure will help ensure a tight mesh of the cutting edges to give a clean cut. Taping both sides of the film is recommended to minimize fold-up or stretching. An ultrasonic weld splicer (Metric splicer) also may be used.

You can use tape splices to intercut triacetate and ESTAR Base film. However, because ESTAR Base prints are 20 micrometres thinner, there may be a slight focus difference when projecting on a large screen. To assure compatibility, order the same type of film stock for all prints used in a production.

*You can omit the No. 2B Filter without affecting the sound quality. Using this filter is an operational convenience to

conform with printer setup for other products that require it.

STANDARD PRODUCTS AVAILABLE

Format	Length in Feet	Perforation
	(Metres)	Pitch
35 mm SP666	2000 (610)	KS-1870
35 mm SP779	4000 (1220)	KS-1870
35 mm SP789	6000 (1829)	KS-1870

Note: For availability of non-standard products, contact your Kodak location.

IMAGE STRUCTURE

This film’s excellent sharpness captures the detail in the printing negative for projection onto the largest of theatre screens. Fine-grained emulsions, an ultra-thin layer structure, intragrain absorbing dyes, and superior halation protection contribute to its performance.

MODULATION-TRANSFER CURVE

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 millimetre that can be resolved. The y-axis, “Response,” corresponds to film sharpness. The longer and flatter the line, the more sine waves per millimetre that can be resolved with a high degree of sharpness — and, the sharper the film.

Modulation-Transfer Curves

	200
	100
	70							G
	50							R
(%)	30							B
	20
RESPONSE	5
	10
	7
	3
	2
	1
	1	2	3	4 5	10	20	50	100	200	600
				SPATIAL FREQUENCY (cycles/mm)
F010_0058AC

4 KODAK VISION Premier Color Print Film / 2393™ ∙ H-1-2393t