KODAK EKTAGRAPHIC HC Slide Film • F-12 3
ARTWORK
Cleanliness and good contrast are important for best results.
Use black ink, black crayon, black transfer letters on a white
background, black letters obtained from a lettering machine,
or type set by a local printer . T ry to maintain an even density
of black. Also make sure that the lettering or artwork meets
minimum legibility requirements.
COPYING PR OCEDURE
When you are making slides of lettering or artwork, a single-
lens-reflex camera offers a decided advantage because you
can compose and focus the image in the camera viewfinder.
You may need a supplementary close-up lens or macro lens,
especially if the artwork contains fine detail.
We recommend that you use a matched pair of 200 W
tungsten lamps or two tungsten-halogen photolamps, in a
fixed position, for illum ination on the sides of the copy
stand. Determine the best shutter speed and lens aperture
combination for a give n lighting setup and title by a trial
exposure series, using the suggested exposure ind ex (EI) as
a starting point. Use EI 25 when processing in KODAK
Developer D-11 and EI 8 when processing in KODAK
PROFESSIONAL KODALITH Super RT Developer.
One method to determine the initial exposure time and
aperture setting (f/number) for the test series is to measure
the illumin a tion on the original material. Take a direct
reading with an incident-light meter, or read a gray card with
a reflected light meter. You’ll find that the built-in camera
light meters tend to underexpose wh ite copy material
because they average the reflected light from a wide area of
the scene. However, you can use them satisfactorily with a
gray card.
Another method for determining your first set of trial
exposures is to set the shutter speed at 1 second and take a
shot at every f-stop on the lens. Record the f-stop of the best
exposure and note the lens and lighting arrangement so you
can produce good results again in th e future.
COLORING THE SLIDES
You can color the dry transparency by using a cotton swab to
apply the dye or by dipping it in water-soluble dyes, such as
KODAK Liquid Retouching Colors, CAT 190 1743, or
ordinary food coloring.
An alternative to using dyes is to mount a colored filter
with the slide. Theatrical gelatin filters are available in sheets
in a variety of colors and shades.
OPAQUEING THE SLIDES
One of the adv antages of rev erse-text slides made from high-
contrast black-and-white films is the high-density
background, which can con veniently co ver up imperfections
in the background of the original artwork. If, however, any
dirt, sketch lines, or other objectionable marks on the art are
reproduced on the processed film, these white marks can be
easily painted out with opaque, a light-blocking compound,
such as KODAK Opaque Black, CAT 146 4312. Many of the
black pens and pencils sold for marking overhead projector
transparencies also work well in this application.
IMAGE-STRUCTURE CHARACTERISTICS
The data in this section is based on development at 68°F
(20°C) in KODAK De v eloper D-11 for 2 minutes in a small
tank.
Characteristic Curves
RT Developer
LOG EXPOSURE (lux-seconds)
1.0
0.0
0.0
DENSITY
1.0
2.0
3.0
4.0
1.0 2.0
Process:
KODALITH Super
Small Tank;
68°F (20°C)
3 1/4 min
2 3/4 min
2 1/4 min
3.0
Tungsten:
10 seconds
F009_0100AC
LOG EXPOSURE
(
lux-seconds
)
1.0
0.0
0.0
DENSITY
1.0
2.0
3.0
4.0
1.0 2.0 3.0
10 seconds
Tungsten:
68°F (20°C)
Small Tank;
KODAK Developer D-11,
Process:
F009_0101AC
2 min
2 1/2 min
3 min