Kodak AS-75 - Manual
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Table of Contents:
- Page 2 – KODAK DOUBLE-X AEROGRAPHIC Film 2405; IMAGE STRUCTURE; Process conditions to achieve above values:; STORAGE; Unexposed Film; Developer; Processed Film; PROCESSING; Chemicals
- Page 3 – Replenishment Rates
- Page 4 – Sensitometric Data; REWIND OR SPIRAL REEL PROCESSING; Dimensional stability is an all-inclusive term. In; Temporary Dimensional Changes
- Page 5 – CURVES; Spectral Sensitivity; Wavelength; Log Exposure
- Page 6 – Aerial Imaging; EASTMAN KODAK COMPANY; Gamma vs. Machine Speed; GAMMA; ISO A vs. Machine Speed
©Eastman Kodak Company, 2005
AS-75
KODAK DOUBLE-X AEROGRAPHIC Film 2405
KODAK DOUBLE-X AEROGRAPHIC Film 2405 is a
panchromatic, negative aerial camera film with good contrast
for easier interpretation from negatives, high resolution, and
wide exposure latitude. Its extended red sensitivity permits
greater speed with the filters used for the reduction of
atmospheric-haze effects.
The ESTAR Base provides flexibility, moisture
resistance, high tear resistance, and excellent dimensional
stability. This film has a thin, highly hardened, and
abrasion-resistant emulsion that permit high-temperature
rapid processing in modern continuous-processing
machines.
This film can be processed in the KODAK VERSAMAT
Film Processor, Model 11 or 1140, with KODAK
VERSAMAT 885 Chemicals, KODAK VERSAMAT
641 Chemicals, or KODAK VERSAMAT Chemicals,
Type A. KODAK DOUBLE-X AEROGRAPHIC
Film 2405 can also be processed at normal temperatures in
conventional rewind equipment, such as the Gordon/Morse
M-10 Developing Outfit (Military Designator: B-5) using a
variety of Kodak black-and-white developers
APPLICATIONS
KODAK DOUBLE-X AEROGRAPHIC Film 2405 is a
medium- to high-speed film for aerial mapping, charting, and
general aerial photography.
BASE
3.9-mil (0.10 mm) ESTAR Base with a dyed-gel backing
TOTAL FILM THICKNESS
The nominal total thickness (unprocessed) of this film is
4.50 mils (0.114 mm). This includes emulsion—0.40 mil
(0.010 mm), base—3.9 mils (0.10 mm), and backing—
0.20 mil (0.005 mm).
WEIGHT
The weight of 2405 Film (unprocessed), conditioned in
equilibrium with 50 percent relative humidity, is 0.035 lbs
⁄
ft
2
(0.0159 kg/ft
2
).
SPECTRAL SENSITIVITY
Panchromatic, with extended red sensitivity.
SAFELIGHT
Total darkness is required.
EXPOSURE
Aerial film speeds (ISO A or EAFS) should not be confused
with conventional film speeds which are designed for roll
and sheet films used in pictorial photography. The
characteristics of aerial scenes differ markedly from those of
ordinary pictorial or ground scenes because of the smaller
range in subject luminances, atmospheric haze conditions,
and other factors. Therefore, different film-speed parameters
are used to relate aerial-scene characteristics to practical
exposure recommendations. The KODAK Aerial Exposure
Computer, KODAK Publication AS-10 has been published
based on the aerial film speed criterion.
Other suggested aerial film speeds for processing this film
in the KODAK VERSAMAT Film Processor, Models 11 or
1140, using VERSAMAT 885 Chemicals, 641 Chemicals
and Type A Chemicals can be found in the sensitometric data
tables.
Note: The aerial film speeds given in this publication were
obtained by rounding the calculated values to the nearest
cube root of 2 step (equivalent to 1
⁄
3 stop).
Filters
Typical Camera Exposure
A typical exposure for this film is approximately 1
⁄
750
second at f
⁄
8. This exposure is based on a solar altitude of 40
degrees, a clear day, an aircraft altitude of 5,000 feet, and a
speed of ISO A 400, using a 2X antivignetting filter.
Reciprocity Characteristics
No exposure or development time adjustments are required
for exposure times from 1
⁄
1,000 second to 1
⁄
10 second; at
1
⁄
10,000 second, increase the development time by 10
percent.
Nominal speed, daylight (no filter): EAFS or ISO A 400
KODAK PROFESSIONAL WRATTEN Gelatin Filter
No. 3
No. 8
No. 12
No. 15
No. 25
Filter Factor
1.5
2
2
2.5
4
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Summary
2 KODAK DOUBLE-X AEROGRAPHIC Film 2405 • AS-75 IMAGE STRUCTURE The following data are based on processing in KODAK VERSAMAT Film Processors, Model 11, using KODAK VERSAMAT Chemicals at the conditions noted. * Granularity values read at a net diffuse density of 1.0 with a 48-micrometre aperture. Proc...
KODAK DOUBLE-X AEROGRAPHIC Film 2405 • AS-75 3 Replenishment Rates Basic developer and fixer replenishment rates, in millilitres per square inch of film processed, vary depending upon the type of chemicals used. The following rates apply to processing in the VERSAMAT Processor, Models 11 and 1140. P...
4 KODAK DOUBLE-X AEROGRAPHIC Film 2405 • AS-75 Sensitometric Data Model 1140 -- KODAK VERSAMAT Chemicals, Type A This is not a primary processing recommendation, although satisfactory results can be obtained at processor speeds up to 10 feet per minute. Refer to the processing conditions and sensito...
