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  9. Kodak ROYAL GOLD 25 E-40 Instruction manual

Kodak ROYAL GOLD 25 E-40 Instruction manual

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©Eastman Kodak Company, 1996
TECHNICAL DATA
/ COLOR NEGATIVE FILM
December 1996 •E-40
E-40
November 1996
KODAK ROYAL GOLD 25 Film
DESCRIPTION
KODAK ROYAL GOLD 25 Film has the same technically
advanced characteristics as the film it replaces—KODAK
EKTAR 25 Film. Like all ROYAL GOLD Films, it is
designed and produced to meet the needs of knowledgeable
and discriminating photographers who want more from
photographs than general-purpose films can provide.
ROYAL GOLD 25 Film offers micro-fine grain, extremely
high sharpness, and the capability for an extremely high
degree of enlargement. The film is designed for exposure
with daylight or electronic flash.
Use ROYAL GOLD 25 Film in cameras that allow you to
set the film speed manually, or in cameras that will correctly
set the film speed automatically from the DX code on the
magazine. (Some automatic 35 mm cameras do not read the
DX code for ISO 25/15˚ film and will underexpose it.) This
film requires more precise exposure control than general-
purpose films.
Other features include—
FEATURES BENEFITS
• Extremely high
sharpness • Enlargements of superb
clarity
• Incorporates KODAK
T-GRAIN™ Emulsions • Micro-fine grain
• Designed for
processing in KODAK
FLEXICOLOR
Chemicals for
Process C-41
• Canbeprocessedwithother
ROYAL GOLD Films,
KODAK GOLD, EKTAR,
and EKTACOLOR Films,
KODAK Pro Films, and
KODAK VERICOLOR
and EKTAPRESS
Professional Films
• Built-in dye-masking
color couplers • Provides quality color
reproduction without
supplementary masking
DARKROOM RECOMMENDATIONS
Do not use a safelight. Handle unprocessed film in total
darkness.
STORAGE AND HANDLING
Load and unload film in subdued light.
Store unexposed film at 70˚F (21˚C) or lower in the
original sealed package. Always store film (exposed or
unexposed) in a cool, dry place. Process film as soon as
possible after exposure.
Protect negatives from strong light, and store them in a
cool, dry place. For more information on storing negatives,
see KODAK Publication No. E-30, Storage and Care of
KODAK Photographic Materials—Before and After
Processing.
EXPOSURE
Film Speed
Use the speed numbers in the table below with cameras or
meters marked for ISO, ASA, or DIN speeds or exposure
indexes.Donot change theISO-speedsetting when metering
through a filter.
* For best results without special printing.
Light Source KODAK WRATTEN
Gelatin Filter*ISO Speed
Daylight or
Electronic Flash None 25/15˚
Photolamp (3400 K) No. 80B 8/10˚
Tungsten (3200 K) No. 80A 6/9˚
2KODAK ROYAL GOLD 25 Film •E-40
Daylight
Use the exposures in the following table for average frontlit
subjects from 2 hours after sunrise to 2 hours before sunset.
Electronic Flash
Use the guide number in the following table as a starting
pointfor yourequipment. Select the unit output closest tothe
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. If negatives are consistently
too dense (overexposed), use a higher guide number; if they
are too thin (underexposed), use a lower number.
Adjustments for Long and Short Exposures
Nofilter correction or exposure compensationis requiredfor
exposures from 1/10,000 second to 100 seconds. We do not
recommend exposures longer than 100 seconds.
* Use
f
/2.8 for backlit close-up subjects.
† Subject shaded from the sun but lighted by a large area of clear sky.
* BCPS = beam candlepower seconds
Lighting Conditions Shutter
Speed
(second)
Lens
Opening
Bright or Hazy Sun on
Light Sand or Snow 1/125
f
/8
Bright or Hazy Sun (Distinct Shadows) 1/125
f
/5.6*
Weak, Hazy Sun (Soft Shadows) 1/125
f
/4
Cloudy Bright (No Shadows) 1/60
f
/4
Heavy Overcast or Open Shade† 1/60
f
/2.8
Unit Output
(BCPS)*Guide Number
For Distances in Feet/Metres
350 20/6
500 24/7
700 30/9
1000 35/11
1400 40/12
2000 50/15
2800 60/18
4000 70/21
5600 85/26
8000 100/30
PROCESSING
Process KODAK ROYAL GOLD 25 Film in KODAK
FLEXICOLOR Chemicals for Process C-41. For more
information, see KODAK Publication No. Z-131, Using
KODAK FLEXICOLOR Chemicals.
IMAGE STRUCTURE
Print Grain Index
The Print Grain Index number refers to a method of defining
graininess in a print made with diffuse-printing illumination.
It replaces rms granularity and has a different scale which
cannot be compared to rms granularity.
• This method uses a uniform perceptual scale, with a
change of four units equaling a just noticeable difference
in graininess to 90 percent of observers..
• APrint GrainIndex rating of25 onthe scalerepresents the
approximate visual threshold for graininess. A higher
number indicates an increase in the amount of graininess
observed.
• The standardized inspection (print-to-viewer) distance for
all print sizes is 14 inches, the typical viewing distance for
a 4 x 6-inch print.
• In practice, larger prints will likely be viewed from
distances greater than 14 inches, which reduces apparent
graininess.
• Print Grain Index numbers may not represent graininess
observed from more specular printing illuminants, such as
condenser enlargers.
The Print Grain Index number printed in this publication
applies to the following standards:
Sharpness: Extremely High
Degree of Enlargement: Extremely High
Print Grain Index: Less than 25
Negative size: 24 x 36 mm
(135 size)
Print size: 4 x 6 inches
Magnification: 4.4X
KODAK ROYAL GOLD 25 Film •E-40 3
CURVES
Characteristic Curves
LOG EXPOSURE (lux-seconds)
0.0 2.0
DENSITY
1.0
2.0
3.0
4.0
1.0 0.0
Status M
C-41
Daylight 1/100 second
Densitometry:
Exposure:
Process:
R
G
B
1.0 2.0
F002_0539AC
Spectral-Sensitivity Curves
F002_0540AC
Status M
C-41 1/50 second
Densitometry:
Effective Exposure:
Process:
Density:0.2 above D-min
Yellow-
Forming
Layer Layer
Forming
Cyan-
Layer
Forming
Magenta-
2.0
750700
2
600 650450 500400350
to produce specified density
WAVELENGTH (nm)
550
0.0
1.0
*
2.0 300250
LOG SENSITIVITY
*Sensitivity = reciprocal of exposure (ergs/cm ) required
1.0
Spectral-Dye-Density Curves
met by Eastman Kodak Company. The company reserves the right to change and
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
improve product characteristics at any time.
NOTICE: The sensitometric curves and data in this publication represent product tested
F002_0541AC 500
0.0400 WAVELENGTH (nm)
600
DIFFUSE SPECTRAL DENSITY
1.0
0.5
2.0
1.5
2.5
700
C-41
Typical densities for a midscale neutral subject
Process:
and D-min.
Midscale Neutral
Minimum Density
KODAK ROYAL GOLD 25 Film
KODAK ROYAL GOLD 25 Film
KODAK Publication No. E-40
CAT 883 2289
Minor Revision 12-96
Printed in U.S.A.
Consumer Imaging
EASTMAN KODAK COMPANY •ROCHESTER, NY 14650
This publication is printed on recycled paper that contains
50 percent recycled fiber and 10 percent post-consumer material.
JUDGING NEGATIVE EXPOSURE
You can check the exposure level with a suitable electronic
densitometer equipped with a filter such as a KODAK
WRATTEN Gelatin Filter No. 92 or the red filter for
Status M densitometry. Depending on the subject and the
light source used for exposure, a normally exposed and
processed color negative measured through the red filter
should have the approximate densities listed below.
Because of the extreme range in skin color, use these red
density values for a normally lighted forehead only as a
guide. For best results, use a KODAK Gray Card (gray side).
PRINTING NEGATIVES
You can make color prints from negatives by enlarging them
on KODAK EKTACOLOR Papers or KODAK
DURAFLEX® RA Print Material.
Make color transparencies by direct exposure onto
KODAK VERICOLOR Print Film, KODAK VERICOLOR
Slide Film, or KODAK DURATRANS® RA or KODAK
DURACLEAR™ RA Display Material.
Make black-and-white prints on KODAK PANALURE
Papers for conventional black-and-white processing, or
KODAK EKTAMAX RA Professional Papers for
Process RA-4.
Area Measured Density
Reading
The
KODAK Gray Card
(gray side), receiving
the same illumination as the subject 0.75 to 0.95
The lightest step (darkest in negative) of a
KODAK Paper Gray Scale
receiving the
same illumination as the subject 1.10 to 1.30
The highest diffuse density on a normally
lighted forehead
—light complexion
—dark complexion 1.00 to 1.30
0.85 to 1.20
MORE INFORMATION
Kodak has many publications to assist you with information
on Kodak products, equipment, and methods. The following
publications are available from dealers who sell Kodak
products,oryou can orderthemdirectly from Kodakthrough
the order form in KODAK Publication No. L-1, KODAK
Index to Photographic Information. To obtain a copy of L-1,
send your request with $1 to Eastman Kodak Company,
Department 412-L, Rochester, New York 14650-0532.
Note: The Kodak materials described in this publication for
use with KODAK ROYAL GOLD 25 Film are available
from dealers who supply Kodak products. You can use other
materials, but you may not obtain similar results.
E-30 Storage and Care of KODAK Photographic
Materials—Before and After Processing
E-41 KODAK ROYAL GOLD 100 Film
E-42 KODAK ROYAL GOLD 200 Film
E-43 KODAK ROYAL GOLD 400 Film
E-44 KODAK ROYAL GOLD 1000 Film
Z-131 Using KODAK FLEXICOLOR Chemicals
Kodak Information Center’s
Faxback System
—Available 24 hours a day, 7 days a week—
Many technical support publications for Kodak
products can be sent to your fax machine
from the Kodak Information Center. Call:
U.S.A.1-800-242-2424, Ext. 33
Canada 1-800-295-5531
If you have questions about Kodak products, call Kodak.
In the U.S.A.:
1-800-242-2424, Monday–Friday
8 a.m.–8 p.m. (Eastern time)
In Canada:
1-800-465-6325, Monday–Friday
8 a.m.–5 p.m. (Eastern time)
Or contact Kodak on-line at:
http://www.kodak.com/
Kodak, T-Grain, Flexicolor, Vericolor, Ektapress, Gold, Royal Gold,
Ektar, Wratten, Ektacolor, Duraflex, Duratrans, Duraclear, Panalure, and
Ektamax are trademarks.