KODAK HAWKEYE Traffic Surveillance Color Film
•
TI-2420
3
PROCESSING
Normal Processing:
Use KODAK FLEXICOLOR Chemicals, Process C-41, in any
processing equipment designed to accommodate Process
C-41.
Push Processing:
This film may be “pushed” 1 stop by exposing at EI 800,
and extending the development time in Process C-41. (This
time increase may not be possible in all processing
equipment.)
JUDGING NEGATIVE EXPOSURES
Expose this film properly for best results.
Check the exposure level of the color negative with a
suitable electronic densitometer equipped with a filter
such as the red filter for Status M Densitometry, or a
KODAK WRATTEN Gelatin Filter No. 92. Depending on
the subject and the light source used for exposure, a
normally exposed color negative measured through the
red filter should have the approximate densities listed
below. These densities apply for the recommended light
sources and correct processing of the negative.
Densities of Properly Exposed and Processed
Negatives:
Expose this film properly for optimum results.
Check the exposure level of the color negative with a
suitable electronic densitometer equipped with a filter
such as the red filter for Status M Densitometry, or a
KODAK WRATTEN Gelatin Filter No. 92. Depending on
the subject and the light source used for exposure, a
normally exposed color negative measured through the
red filter should have the approximate densities listed
below. These densities apply for the recommended light
sources and correct processing of the negative.
1
KODAK Publication No. R-27
2
Because of the extreme range in skin color, use these values only as a guide.
For best results, use a KODAK Gray Card (gray side).
Push Step
Exposure Index
Developer Time
in Process C-41
Normal
EI 400
3 min 15 sec
Push 1 Stop
EI 800
3 min 45 sec
Area on the Negative:
Densities:
The KODAK Gray Card
1
(gray side) receiving
the same illumination as the subject
0.80 to 1.00
The lightest step (darkest in the negative) of a
KODAK Paper Gray Scale receiving the same
illumination as the subject
1.15 to 1.35
Normally lighted forehead of person with light
complexion
2
1.05 to 1.35
Normally lighted forehead of person with dark
complexion
2
0.90 to 1.20
SCANNING NEGATIVES
General
Traffic Surveillance Color Film negatives can be easily
scanned with a variety of photomultiplier tube (PMT),
linear-array charge-coupled device (CCD) and area-array
CCD scanners. The film can be scanned using desktop as
well as higher-end drum or flat-bed scanners. Since there is
no established standard for filter sets used in film scanners,
each manufacturer’s scanner will have its own
characteristic output. The sensitivity of a scanner to a
film’s dye set is determined by the spectral sensitivity of
the CCD and the spectral distribution of the colored filters
used to capture the red, green and blue information
contained in the film. A scanner’s characteristic output
may also be affected by the look-up tables or matrices used
by the scanner to output information for monitors,
transmission, etc. These tables or matrices can be in the
form of a “plug-in” program used with a specific image
manipulation software package, updateable ROMs
included with the equipment, or fixed algorithms for
determining calibration and balancing, similar to those
used in photographic color printing equipment.
The generic “color negative film” channel designation
available with scanner software will provide only a starting
point for balancing. The final color balancing and
adjustment of scene-dependent contrast and brightness
for any particular image can be done using scanner
controls at the pre-scan stage, or after the image is
imported through the imaging software or workstation.
Some scanners allow for the use of “plug-in” programs
that will calibrate on D-min film stock. Since every color
negative film has a different colored-coupler mask, the
optimum D-min balance will be different for each film.
Therefore, optimum scanning of these films are
accomplished through the use of specifically calibrated
channels.
KODAK Photo CD Imaging Workstation (PIW)
Photo CD Film Term tables store information that
determines the tone scale and color reproduction
characteristics of a Photo CD image. These tables also
contain photographic information about different types of
film, and parameters specific to each film.
Photo CD Film Term tables are intended for use by
owners and operators of KODAK Photo CD Imaging
Workstations (PIWs), and can be downloaded from
Kodak’s website.
To access
Go to
Film Terms for KODAK
PHOTO CD Imaging
Workstations
www.kodak.com/go/pcdFilmTerms
Drivers for KODAK Film
Scanners
www.kodak.com/go/scannerDrivers
