Golorbrin Liner Nts = Oo Ars; Setting Filtration; Making Your First Color Print - Omega C760 Instruction Manual

When the white light is "'on'', a jewelled white light
indicator will glow at the front of the lamphouse.
When the white light is "off", the jewel will be
covered by the handle of the white light lever.
The use of the white light control does not disturb any
original filter settings in any way: once you have
focused and composed your picture with white light,
simply return the white light lever to the "off" posi-
tion; this will automatically restore the original filtra-
tion for making the color print exposure.
The white light control can be used for printing black-
and-white photographs if desired. Or, you can set all
three color filters at '0'. A detent ensures that the
filters are kept securely out of the light path, with only
white light being allowed to reach the black-and-white
paper.
Color Printing
Making color prints from either color negatives or
transparencies is relatively easy. The goal of color
printing is to produce a good "'balanced"' print — that
is, a print without any overall color cast and in which
colors approximate those of the original image.
(There are, of course, cases when special effects are
desired but even in these cases, the first step is to
determine the filtration for a "normal" print, then
make controlled changes to achieve the desired
results.) .
The steps required to make a good "balanced" print
can vary greatly, due to such factors as type and
processing of color film, brand of film and paper used,
type of paper and surface finish, color chemistry, the
type of enlarger, temperature, and accuracy of
processing times, etc.
However, the basic procedure for making color prints
remains the same. The printing light is filtered
through subtractive primary colors — Cyan, Magenta
and Yellow — using combinations of filters of varying
densities.
The C760 Dichroic Lamphouse is designed to give you
good prints easily, quickly and consistently by
incorporating a high intensity light for short printing
times plus the necessary filters, accurately calibrated
and precisely controlled.
This section is designed to provide a brief
introduction into color printing, not to provide specific
instructions or to serve as a working manual. Several
of the books listed under ''Recommended Reading"
will supply detailed information on the entire process
of color printing.
SETTING FILTRATION
The C760 Dichroic Lamphouse incorporates three
continuously variable dichroic filters — Cyan,
Magenta and Yellow — ranging from 0 (no filtration)
to 200CC (maximum filtration) in one CC increments.
At the "0" setting, the filters are securely held ina
retracted position by detents, permitting only white
light to pass. (This setting can be used for printing
black-and-white although it is recommended that the -
white light lever be used for this purpose). =
To set the desired filtration, merely dial the required
strength and color as indicated on the illuminated
scales.
By using the proper combination of filters (usually two
— magenta and yellow) when printing color negatives,
the proper filtration may be secured to produce a
"balanced" color print.
COLOR CORRECTION CHART
RECOMMENDED FILTRATION
Transparencies
Subtract Magenta & Yellow
If Your Print
Is: Too. a
Red Add Magenta & Yellow
Green Subtract Magenta Add Magenta
Blue Subtract Yellow Add Yellow
Cyan Subtract Magenta & Yellow | Add Magenta & Yellow
Magenta Add Magenta Subtract Magenta
Negatives
Yellow Add Yellow Subtract Yellow
Too Dark Close Lens Open Lens
Too Light |Open Lens Close Lens
MAKING YOUR FIRST COLOR PRINT
Since so many different color printing materials are
available, refer to specific instructions packed with
those products for filter recommendations. However,
to assist you in making your first color prints, these"
filtration settings and f/stops are suggested as ap-" —
proximate starting points in producing an 8x10 color —
print, using a standard negative — that is, a negative ©
pe has been correctly exposed and developed nor-
mally.
SUGGESTED SETTINGS FOR FIRST PRINT
Printing Paper |Chemistry
Suggested
Initial Filter | Suggested
Settings fiStop
Kodak | Vericolor Il | 90 Y 45M £18
Kodacolor II | 75 Y 55M 8
13