Kodak 7302TM, 5302TM manual Processing, Lubrication, Image Structure

PROCESSING

Use the following process recommendations as starting points for a typical continuous-immersion processor using formulas presented in KODAK Publication No. H-24.15, Manual for Processing EASTMAN Motion Picture Films, Module 15. The processing times may require modification for a particular machine.

			Replenishment
Processing	Temperature	Time	Rate
			(mL per 100 ft)
Step	˚C (˚F)	(min:sec)
			35 mm	16 mm
KODAK	21 ± 0.3	†	650	325
Developer D-97*	(70 ± 0.5)		(D-97R)	(D-97R)
Stop Rinse‡	21 ± 1	0:50	12,000	6,000
	(70 ± 2)
KODAK	21 ± 1	6:00	600	300
Fixing Bath F-5*	(70 ± 2)
Wash	21 ± 1	10:00	12,000	6,000
(countercurrent)	(70 ± 2)
Dry	35	§	—	—
	(95)

*Agitation in the developer and in the fixing bath should be by recirculation through submerged spray jets that impinge on the film strands.

†Develop to the recommended control gamma of 2.4 to 2.6 Status M Densitometry (Blue).

‡Fixer-laden water overflow from the first wash tank (pH approximately 6.0).

§Drying depends on many factors such as air temperature, relative humidity (RH), volume, rate and distribution of the air flow, final squeegeeing, etc. In a conventional convectional-type drying cabinet with air at about 35˚F (95˚C) and 40- to 50-percent RH, drying will take 15 to 20 minutes. In an impingement-type drying cabinet, however, with

a higher temperature and lower RH, drying time is greatly reduced. WIth either type of dryer, the film should be dry without tackiness 1⁄2 to 2⁄3 of the way through. Upon cooling to room temperature after leaving the dryer, the film should be at equilibrium with the room air at approximately 50-percent RH.

Notice: Observe precautionary information on product labels and on Material Safety Data Sheets.

LUBRICATION

All films destined for projection require some lubrication to prevent problems during early projection life. Edge waxing with a paraffin wax solvent solution provides a simple, inexpensive, and adequate lubrication for 35 and 70 mm projection prints. For 8 and 16 mm prints, an overall lubricant may be required.

IMAGE STRUCTURE

The modulation-transfer curves, the diffuse rms granularity, and the resolving power data were generated from samples of 5302 Film exposed with tungsten light and processed as recommended in KODAK Developer D-97 at 21˚C (70˚F) to the recommended control gamma. For more information on image-structure characteristics, see KODAK Publication No. H-1, KODAK Motion Picture Film.

Diffuse RMS Granularity* 8

Resolving	TOC 1.6:1	63 lines/mm
Power†	TOC 1000:1	125 lines/mm

*Read at a net diffuse visual density of 1.0, using a 48- micrometre aperture.

†Determined according to a method similar to the one described in ISO 6328-1982, Photography—Photographic Materials— Determination of ISO Resolving Power.

2 EASTMAN Fine Grain Release Positive Film 5302™ / 7302™ ∙ H-1-5302