March 2000 • CIS-144
©Eastman Kodak Company, 2000
November 1998 • CIS-164
CURRENT INFORMATION SUMMARY March 2000 • CIS-144
Supplementary Information on KODAK EKTAMAX RA Professional Paper
KODAK EKTAMAX RA Professional Paper uses colored
dyes to form black-and-white images in prints made from
color and black-and-white negatives. It is designed for
processing in KODAK EKTACOLOR RA Chemicals for
Process RA-4 along with color negative papers.
The information in this publication supplements the
information provided in the instruction sheet and in KODAK
Publication No. G-22, KODAK EKTAMAX RA Professional
Paper.

CHARACTERISTICS AND APPLICATIONS

Suggested uses for EKTAMAX RA Professional Paper
include intermediate applications for graphics reproductio n,
displays, real-estate brochures, publications, press releases ,
and portrait proofs. The paper may also be acceptable for
other applications in which long-term display and keeping
are not required. In applications that require archival or
long-term keeping or complete image neutrality , a traditional
black-and-white paper is a better choice.

STORAGE AND HANDLING

Store unexposed paper at 13°C (55°F) or lower in the
original sealed package. High temperatures or hi gh humidit y
may produced undesirable photographic changes. Stor age of
unexposed paper at room temperature will produce a hue
shift over time (see “Effects of Storage Conditi ons”).
Avoid moisture condensation by removing the package
from cold storage the day before printing.
Handle paper carefully by the edges. The paper is
packaged with the emulsion side of all sheets facing in the
same direction. For complete light and moisture protection,
use the inner bag and the two-part cardboard box t o sto re the
paper.

EXPOSURE RECOMMENDATIONS

The spectral sensitivity and printing speed of KODAK
EKTAMAX RA Professional Paper are designed to be the
same as those of KODAK PROFESSIONAL PORTRA,
SUPRA, and ULTRA Papers. Therefore, printing
EKTAMAX RA Paper should be very similar to printing
KODAK PROFESSIONAL Papers. If you are printing color
negatives and have a balance setup for those color papers,
you can use that setup for EKTAMAX RA Paper. An
adjustment of filtration from that balance will not change th e
hue of EKTAMAX RA Paper, but it will cause a change in
contrast.
If you are printing black-and-white negatives onto
EKTAMAX RA Paper, two methods can provide suitable
results:
• Put a piece of processed D-min from KODAK
PROFESSIONAL PORTRA Film in the exposing beam
along with the filters you normally use to print color
negatives.
• To the filtrationthat you use to print color negatives,
add 35units of magenta and 65 units of yellow filtration
to simulate a piece of film D-min.
If you do not have any processed D-min from
PROFESSIONAL PORTRA Film or a starting filter pack, a
filter pack of 80M + 110Y is a reasonable starting point.

LATENT-IMAGE KEEPING

You should not notic e shift s in the la tent i mage wit h k ee ping
times from 1 minute to 24 hours. Therefore, you do n ot need
to change your printing procedures to compensate for
latent-image shifts under normal temperature and handling
conditions. (If shifts do occur, you can minimize their effect
by keeping the time between exposure and processing the
same for all paper.)

IMAGE HUE

The term “hue” usually doesn’t apply to untoned
black-and-white papers. However, this paper can exhibit
slight variations in hue because it uses colored dyes t o form
images. When we use the term “hue” in this publication, we
are referring to the image tone (or image-tone neutrality) of
prints. We will use hue interchangeably with image tone to
describe images that vary slightly from neutral.
Those who view prints on this paper expe ct the m to appe ar
neutral. Therefore, viewers are more sensitive to hue
variations in prints on EKTAMAX RA Paper than they are
to hue variations in color prints.
The most likely contributor to hue variations is the color
quality of the viewing light. However, improper storage
conditions and some processing problems can also cause
variations in hue. (The references to hue in the following
sections are based on tests made in the school-finishing and
commercial markets.)