






| | Chromira Digital Prints
The color printing industry is changing. Fuji and Kodak have stopped
manufacturing the paper and chemistry for traditional type "R" darkroom prints
from transparencies. After careful evaluation and testing for over a
year, I have decided to offer digital versions of my prints on the ZBE Chromira
optical printer. These prints are digital exposures
on color negative (Type "C") photographic paper, processed with normal darkroom chemistry. The
result is a real photograph with the archival characteristics of a traditional
color print.
The Chromira's print resolution is 300 pixels per inch (ppi), but each pixel
is digitally sharpened by printer software to an effective resolution of 425 ppi.
This resolution is indistinguishable to the eye compared to an image printed
from film. Chromira photographic prints are not inkjet or giclée
prints. The individual pixels are continuous tone, meaning that the full
area of each pixel is the color measured in the digital scan, not an ink dot
surrounded by white. Because the colors occupy all the visible paper
surface, a continuous-tone print has the look of a real photograph without the
speckled, grainy appearance of an inkjet print. See the test samples
below for an example of the difference:

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HP 960 inkjet output at 2400x1200 dpi resolution, Premium
Photo Gloss paper |
Chromira output at 300 ppi resolution, Fuji Crystal
Archive Gloss paper |
Both images scanned at 960 ppi on Imacon Precision III scanner, no
sharpening applied. Dimensions of sample on print:
0.324" x 0.564" |
Comparing an inkjet printer's dots-per-inch number (dpi) to a continuous-tone
printer's pixels-per-inch number (ppi) is like comparing apples to
oranges. As shown above, four (or more) times the dots-per-inch resolution
is still grainier in appearance compared to a continuous-tone device like the
Chromira. In addition, the Chromira can make each pixel one of a possible 68.7 billion
colors. Inkjet printers must choose from one of four or six ink colors and
then simulate other colors by mixing the inks in different dot patterns.
These dot patterns can become recognizable, especially in the highlights and
areas of saturated color.
I want to share with you some of the reasoning I went through in making this
decision. My goal as a photographer is to produce the finest images
possible that you can feel proud of owning for years, and inkjet technology is
not yet able to match the Chromira in a number of areas.
 | Inkjet papers and inks are new and the technology is changing
quickly. Their archival lifetime is still a matter of
debate. Type C paper has a proven track record of archival
stability. |
 | Because Chromira prints are optical prints on standard color print paper, the matte or gloss surfaces will not show any of the problems
experienced with inkjet prints, including bronzing (variable reflections
caused by changes in ink density), visible dots, humectant release, or ink
smudging. Humectant release is a problem with inkjet prints where
a chemical used to prevent clogging of the print head vaporizes after the
print is framed and deposits an oily film on the glass covering the
print. |
 | Fuji Crystal Archive paper has a durable surface that is more resistant to
scratches and fingerprints than inkjet papers. Unlike inkjet prints,
the surface can be cleaned by traditional print restoration
techniques. |
You can rest assured that a Chromira print will be just as appealing and last
as long as a traditional darkroom print. I am continuing to experiment
with inkjet print processes and may offer these prints in the future when the
technology is ready to meet my requirements.
In a few cases, a print is offered on another optical printer called the
Lightjet. This printer has slightly different characteristics from the
Chromira, and for certain images produces a better match to the original
film. For all my printing, I know which printer is the best for a given
image and will always use that printer for my clients.
When producing a digital image I do all necessary computer work myself and
control all aspects of the production process to preserve the look of a
conventional print. As always, feel free to contact me if you have
any questions about this change.
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