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KODAK EKTAPAN Film
—Notice of Discontinuance—
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KODAK EKTAPAN Film has been discontinued. As a recommended alternative, we suggest KODAK PROFESSIONAL T-MAX 100 Film / 100TMX, which may be suitable for some applications. For more information, see KODAK Publication F-4016, KODAK PROFESSIONAL T-MAX Films.
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Contents
KODAK EKTAPAN Film / EKP is a medium-speed (ISO 100/21°) panchromatic film that features very fine grain. It is well suited for portraiture and close-up work with electronic flash. It is also an excellent choice for commercial, industrial, and scientific applications with daylight or tungsten light.
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FEATURES
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BENEFITS
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Excellent for producing high-quality images
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Retouching surface on base and emulsion sides
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Can be retouched on either side
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Sheets Per Package
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Size (inches)
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Film Code Notch
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Base
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CAT No.
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25
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4 x 5
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7-mil ESTAR Thick
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168 9850
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100
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4 x 5
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168 9777
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100
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5 x 7
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168 9090
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50
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8 x 10
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168 9058
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10
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11 x 14
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168 9017
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Roll
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Base
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CAT No.
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70 mm x 75 ft (Sp 473)
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7-mil ESTAR Thick
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152 6797
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3 1/2 in. x 75 ft (Sp 825)
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154 1317
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Store unexposed film at 75°F (24°C) or lower in the original package. Always store film (exposed or unexposed) in a cool, dry place. For best results, process film as soon as possible after exposure.
Protect processed film from strong light and store it in a cool, dry place. For more information on storing negatives, see KODAK Publication No E-30, Storage and Care of Photographic Materials-Before and After Processing.
Use the exposures in the table below for frontlit subjects from 2 hours after sunrise to 2 hours before sunset.
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Lighting Conditions
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Shutter Speed (second)
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Lens Opening
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Bright or Hazy Sun on Light Sand or Snow
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1/250
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f/16
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Bright or Hazy Sun (Distinct Shadows)
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1/250
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f/11*
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Weak, Hazy Sun (Soft Shadows)
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1/250
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f/8
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Cloudy Bright (No Shadows)
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1/250
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f/5.6
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Heavy Overcast or Open Shade**
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1/250
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f/4
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* Use f/5.6 for backlit close-up subjects.
** Subject shaded from the sun, but lit by a large area of clear sky.
Use the guide numbers in the table below as a starting point for your equipment. Select the unit output closest to the number given by your flash manufacturer. Then find the guide number for feet or metres. To determine the lens opening, divide the guide number by the flash-to-subject distance.
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Unit Output BCPS*
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Guide Number
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For Distances in Feet
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For Distances in Metres
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350
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40
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12
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500
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50
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15
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700
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60
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18
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1000
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70
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21
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1400
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85
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26
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2000
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100
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30
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2800
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120
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36
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4000
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140
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42
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5600
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170
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50
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8000
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200
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60
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* BCPS = beam candlepower seconds.
At the exposure times in the table below, compensate for the reciprocity characteristics of this film by increasing exposure and adjusting the development as shown.
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If Indicated Exposure Time Is (seconds)
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Use This Lens-Aperture Adjustment
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OR
This Adjusted Exposure Time (seconds)
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AND
Use This Development Adjustment
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1/1,000
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None
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None
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None
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1/100
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None
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None
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None
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1/10
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None
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None
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None
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1
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+1 stop
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2
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10%
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10
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+2 stops
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50
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20%
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100
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+3 stops
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1,200
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30%
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It may be difficult to use the table to estimate the adjusted times for calculated exposure times between 1 and 100 seconds. The following graphs will help you find the adjusted times for calculated exposure times between those given in the table above.
Multiply the normal exposure time by the filter factor.
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KODAK WRATTEN Gelatin Filter
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Daylight
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Tungsten
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Multiply Exposure By (filter factor)
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Multiply Exposure By (filter factor)
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No. 8 (yellow)
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2
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1.5
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No. 11 (yellowish green)
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4
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3
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No. 15 (deep yellow)
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3
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2
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No. 25 (red)
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8
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4
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No. 47 (blue)
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5
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10
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No. 58 (green)
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8
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8
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Polarizing Filter
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2.5
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2.5
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Do not use a safelight. Handle unprocessed film in total darkness.
Using a safelight will affect your results. If absolutely necessary, after development is half complete, you can use a safelight equipped with a KODAK 3 Safelight Filter (dark green) with a 15-watt bulb for a few seconds. Keep the safelight at least 4 feet (1.2 metres) from the film. Run tests to determine that safelight use gives acceptable results for your application.
For information on safelight testing, see KODAK Publication K-4, How Safe Is Your Safelight?
Handle unprocessed film in total darkness.
These starting-point recommendations are intended to produce a contrast index of 0.56. Make tests to determine the best development time for your application.
Provide continuous agitation. Prewetting sheet film may improve uniformity in tray processing.
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KODAK Developer or Developer and Replenisher
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Development Time in Minutes
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65°F (18°C)
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68°F (20°C)
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70°F (21°C)
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72°F (22°C)
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75°F (24°C)
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T-MAX RS
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6
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5
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4
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4
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3
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XTOL
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8 1/2
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7 1/4
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6 1/4
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5 1/2
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5
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HC-110 (Dil B)
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5
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4 1/2
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4 1/4
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4
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3 1/2
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D-76
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9
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8
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7
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6 1/2
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5 1/2
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DK-50 (1:1)
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5
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4 1/2
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4 1/4
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4
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3 1/2
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MICRODOL-X
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12
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10
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9 1/2
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8
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7
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HC-110 (Dil A)
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3 1/4
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3
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2 3/4
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2 1/2
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2 1/4
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NOTE: You can also use these times for large-tank processing with gaseous-burst agitation (1 second every 10 seconds) that provides pressure to raise the solution level 5/8 inch (16 mm). Development times shorter than 5 minutes may produce unsatisfactory uniformity.
Agitate once per minute.
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KODAK Developer or Developer and Replenisher
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Development Time in Minutes
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65°F (18°C)
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68°F (20°C)
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70°F (21°C)
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72°F (22°C)
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75°F (24°C)
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T-MAX RS
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6
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5
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4
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3 1/2
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3
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HC-110 (Dil B)
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7
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6
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5 1/2
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5
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4 1/4
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D-76
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11
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10
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9
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8 1/2
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7 1/2
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DK-50 (1:1)
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7
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6
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5 1/2
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5
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4 1/4
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XTOL
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9 1/2
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8
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6 3/4
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6 1/4
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5 1/2
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MICRODOL-X
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16
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13
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12
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10
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9
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HC-110 (Dil A)
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4
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3 3/4
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3 1/4
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3
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2 3/4
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NOTE: Development times shorter than 5 minutes may produce unsatisfactory uniformity.
Use only KODAK HC-110 Developer (Dilution B) to process long rolls on spiral reels.
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KODAK Developer
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Development Time in Minutes
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65°F
(18°C)
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68°F
(20°C)
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70°F
(21°C)
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72°F
(22°C)
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75°F
(24°C)
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HC-110 (Dil B)
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8
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7
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6 1/2
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6
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5 1/4
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Step / Solution
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Time (min:sec)
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Rinse—with agitation:
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KODAK Indicator Stop Bath
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0:30
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Fix—with frequent agitation:
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KODAK Fixer
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5:00 to 10:00
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KODAK Rapid Fixer
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2:00 to 4:00
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Wash:
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Running water
-OR-
Rinse with water
KODAK Hypo Clearing Agent
Running water
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20:00 to 30:00
0:30
1:00 to 2:00
5:00
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Final rinse:
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KODAK PHOTO-FLO Solution
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0:30
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Dry—in a dust-free environment
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The data in this section is based on development at 68°F (20°C) in KODAK Developer HC-110 Developer (Dilution B) for 6 minutes in a large tank.
Diffuse rms Granularity*
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12 Extremely Fine
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* Read at a net diffuse density of 1.0, using a 48-micrometre aperture, 12X magnification.
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 Characteristic Curves
- Contrast-Index Curves
NOTICE: The sensitometric curves and data in this publication represent product tested under the conditions of exposure and processing specified. They are representative of production coatings, and therefore do not apply directly to a particular box or roll of photographic material. They do not represent standards or specifications that must be met by Eastman Kodak Company. The company reserves the right to change and improve product characteristics at any time.
Kodak, Ektapan, Estar, D-76, DK-50, HC-110, Microdol-X, Photo-Flo, T-Max, Wratten, and Xtol are trademarks.
F-10 • Revised December 2002
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Characteristic Curves
Contrast-Index Curves