Kodak AS-116 manual Image Structure, Storage, Processing

Typical Camera Exposure

A typical exposure for this film, in an aerial camera with a 2X antivignetting filter, is approximately 1⁄750 second at f⁄5.6. This exposure is based on a solar altitude of 40 degrees, a clear day, and an aircraft altitude of 5000 feet.

Reciprocity Characteristics

No filter correction or exposure adjustment is required for exposure times from 1⁄10,000 second to 1⁄10 second.

IMAGE STRUCTURE

	Resolving Power		rms
Process	(line pairs/mm)
			Granularity*
	TOC 1.6:1	TOC 1000:1
AN-6, 3:00 dev time	80	100	16
C-41, 4:15 dev time	80	125	15
C-41, 3:15 dev time	80	125	10

*Granularity values read at a net green diffuse density of 1.0 with a 48-micrometre aperture.

STORAGE

For consistent results, all aerial films should be stored under fairly constant conditions. Kodak aerial films are “usually” packaged in equilibrium with 40 to 50 percent relative humidity. High temperatures or high humidity may produce undesirable changes in the film. Color films are more seriously affected by adverse storage conditions than are black-and-white films. These adverse conditions affect the three emulsion layers to different degrees, thus causing changes in the color balance, as well as possible changes in overall film speed and contrast.

Unexposed Film

While this film has exceptionally good rawstock keeping characteristics at room temperature, it is recommended that film that will not be exposed within two weeks be stored in a refrigerator at 55°F (13°C) or lower, or freezer at 0 to -10°F (-18 to -23°C), in the original sealed container. If the film is stored in a refrigerator, remove it about 2 hours before opening; if stored in a freezer, remove it about 8 hours before opening. A sufficient warm-up time is necessary to prevent moisture condensation on cold film—otherwise, moisture spotting, ferrotyping, or sticking may occur.

Exposed Film

Although this film has excellent latent-keeping properties, it remains prudent to keep exposed film cool and dry whenever practical. Process the film as soon as possible after exposure to avoid undesirable changes in the latent image. If it is necessary to hold exposed but unprocessed film for more than a week, it should be resealed and refrigerated at 40°F (4°C) or lower. Before unsealing and processing exposed film that has been held in cold storage, follow the warm-up procedures described above for unexposed film.

Processed Film

For best keeping, store processed film in a dark, dust-free area at 50 to 70°F (10 to 21°C) and 30 to 50 percent relative humidity. Preferably, store negatives on the spool or in individual KODAK Sleeves. High relative humidity promotes the growth of mold and causes ferrotyping. Very low relative humidity causes excessive curl and brittleness. Avoid storage temperatures over 80°F (27°C).

Caution! Do not freeze processed AEROCOLOR III Color Negative Film 2444. Freezing processed film can cause coupler alterations.

PROCESSING

The primary recommendation for processing 2444 Film is in Process AN-6 using mechanized processors. Mechanized processing in roller-transport processors offers the advantages of uniform treatment of all portions of the roll, freedom from banding, and absence of significant density variations from ends of the roll to the center.

Note: Contrast may be easily tailored over a range of approximately 0.65 to 0.95 gamma to suit various acquisition and personal preferences. The following tables for Process AN-6 pertain to the highest contrast option; a table at the end of this section lists both AN-6 and C-41 developer time/temperature options to achieve a variety of desired contrasts.

Process AN-6 Cycle Times

	Transport Speed	Dry-to-Dry
Processor		Processing
	(feet per minute)
		Time
KODAK Aerial Color	4.2	11.8 minutes
Processor, Model 1611
KODAK EKTACHROME
RT Processor, Model	4.2	11.6 minutes
1811 (with Quick-Change)

In each case, the film is fed emulsion side down into the processor.

This publication provides general information regarding the KODAK Aerial Color Processor, Model 1611, and the KODAK EKTACHROME RT Processor, Model 1811.

Refer to the operating manuals for additional set-up information.

Note: For a list of firms equipped to offer machine processing of 2444 Film, send an e-mail to aerial@kodak.com or write to Eastman Kodak Company, Aerial Imaging, Rochester, New York 14653-7128.

2 KODAK AEROCOLOR III Negative Film 2444 • AS-116