KODAK TRI-X Reversal Film 7266
TECHNICAL DATA / BLACK-AND-WHITE REVERSAL FILM
August 2003 • H-1-7266t
KODAK TRI-X Reversal Film 7266
We are committed to black & white film—improvements to
our family of reversal films prove it. New KODAK TRI-X
Reversal Film 7266 offers finer grain and increased
sharpness, and includes EASTMAN KEYKODE Numbers
for easy cross-reference of shots in minutes, not hours.
Reduced static support allows for a cleaner image
throughout the filmmaking process. And because our new
films do not require processing in a bleach containing heavy
metals, they are easier on the environment. Our improved
films provide the rich blacks and high contrast you have
come to expect from KODAK Black & White reversal films.
KODAK TRI-X Reversal Film 7266 (16 mm) is a
high-speed, panchromatic black-and-white film with an
antihalation undercoat that makes it suitable for general
interior photography with artificial light. It can also be used
in daylight and is particularly useful for sports pictures
taken at regular speed or slow motion in weak light (overcast
sky or late in the day). This film is characterized by
excellent tonal gradation and sharpness.
When processed as a reversal film, the resulting positive
can be used for projection or for duplication. If processed as
a negative material by conventional methods, the film will
yield satisfactory results, although there will be some loss in
speed and an increase in granularity.
BASE
KODAK TRI-X Reversal Film 7266 has a grey acetate safety
base with an additional anti-halation undercoat. The back
side of the base contains an anti-static layer with a carnauba
wax lubricant.
©Eastman Kodak Company, 2003
DARKROOM RECOMMENDATIONS
Reversal Processing
All processing operations should be carried out in total
darkness until the bleaching step has been completed. If
necessary, the film can be examined (for a few seconds only)
after development is 50 percent complete. Use a
KODAK 3 Safelight Filter / dark green, with a 15-watt bulb,
no closer to the film than 1.2 metres (4 feet). Following
bleaching, normal room lighting can be used.
Negative Processing
No safelight is recommended until after the stop bath.
Unprocessed films must be handled in total darkness.
STORAGE
Store unexposed film at 13°C (55°F) or lower. For extended
storage, store at -18°C (0°F) or lower. Process exposed film
promptly. Store processed film according to the
recommendations in ANSI/PIMA IT9.11-1998: for
medium-term storage (minimum of ten years), store at
10°C (50°F) or lower at a relative humidity of 20 to
30 percent; for extended-term storage (for preservation of
material having permanent value), store at 2°C (35°F) or
lower at a relative humidity of 20 to 30 percent. For active
use, store at 25°C (77°F) or lower, at a relative humidity of
50 +/- 5 percent. This relates to optimized film handling
rather than preservation; static, dust-attraction and
curl-related problems are generally minimized at the higher
relative humidity. After usage, the film should be returned to
the appropriate medium- or long-term storage conditions as
soon as possible.
For more information about medium- and long-term
storage, see ANSI/PIMA IT9.11-1998,
SMPTE RP131-2002, and KODAK Publications No. H-1,
KODAK Motion Picture Film available online at
http://www.kodak.com/US/en/motion/support/h1, and
No. H-23, The Book of Film Care.
EXPOSURE INDEXES
RECIPROCITY CHARACTERISTICS
Daylight - 2001
Tungsten (3200K) - 160
Use these indexes with incident- or reflected-light
exposure meters and cameras marked for ISO or ASA speeds
or exposure indexes. These indexes apply for meter readings
of average subjects made from the camera position or for
readings made from a gray card of 18-percent reflectance
held close to and in front of the subject. For unusually lightor dark-colored subjects, decrease or increase the exposure
indicated by the meter accordingly.
EXPOSURE TABLE - TUNGSTEN LIGHT
At 24 frames per second (fps), 170-degree shutter opening:
Lens Aperture
Footcandles
Required 1
1
f/1.4
f/2
f/2.8
f/4
f/5.6
f/8
16
32
64
125
250
500
At 18 frames per second, use 3/4 of the footcandles (fc) shown. When
the film is used as a negative material, the values specified should be
doubled.
Lighting Contrast The recommended ratio of key-light-plus-fill-light to fill
light is 2:1 or 3:1. However, you may use 4:1 or greater
when a particular look is desired.
You do not need to make any exposure adjustments for
exposure times from 1/1,000 to 1 second. If your exposure is
in the 1/10,000 second range, it is recommended that you
increase your exposure by 1⁄2 stop.
REVERSAL PROCESSING
KODAK B&W Reversal Process
This film should be processed with KODAK B&W
Reversal Process Kit Chemicals or with solutions prepared
according to the formulas presented in KODAK Publication
No.H-24.15, Manual for Processing KODAK Motion
Picture Films, Module 15.
Note: KODAK B&W Reversal First Developer and
Replenisher (D-94A) and KODAK B&W Reversal
Bleach and Replenisher (R-10) should be used with this
film.
The recommended starting points for processing times
and temperatures are shown in the table below. Actual
processing times may differ from the ones shown because of
machine design variables, such as film transport speed,
degree of solution agitation, amount of solution carry-over,
etc.
Process Step
FILTER FACTORS
KODAK
WRATTEN
Filter No.
Daylight
3
8
1.5
2
8N5 12 15 21 23A
4
2
2.5
3
5
Time
24.4°C (76°F)
First Developer
KODAK B&W Reversal First
Developer and Replenisher (D-94A)
60 sec
25 29 961
Wash
30 sec
10 40
KODAK B&W Reversal Bleach and
Replenisher (R-10)
60 sec
Wash
30 sec
8
1For
use in bright sunlight to reduce the exposure without modifying color
rendering or depth of field. This filter which has a neutral density of 0.90
provides a reduction in exposure equivalent of 3 full stops.
Clearing Bath
30 sec
Wash
30 sec
Re-exposure
800 footcandle
seconds
Second Developer
KODAK B&W Reversal Developer
and Replenisher (D-95)
30 sec
Wash
30 sec
Fixer
30 sec
Wash
2 min
Notice: Observe precautionary information on product labels and on
the Material Safety Data Sheets.
1.Super 8 automatic cameras will expose the film at ASA 160 due to the
ANSI standard cartridge.
2
KODAK TRI-X Reversal Film 7266 • H-1-7266t
IDENTIFICATION
AVAILABLE ROLL LENGTHS
After processing, the product code numbers 7266, emulsion
and roll number identification, emulsion letter designator
ED, and KEYKODE number are visible along the length of
the film.
For information on film roll lengths, check Kodak's Motion
Picture Films product catalog or see a Kodak sales
representative in your country.
CURVES
IMAGE STRUCTURE
Characteristic Curve
The modulation-transfer curves and the diffuse
rms granularity were generated from samples of 7266 Film
exposed with tungsten light and processed in the
recommended reversal process at 24.4°C (76°F). For more
information on image-structure characteristics, see KODAK
Publication No. H-1, KODAK Professional Motion
Picture Film.
3.0
Exposure: Daylight 1/50 sec
Process: 60 Seconds at 76F (24C)
Sensitometry: Diffuse visual
DENSITY
2.0
MTF
The “perceived” sharpness of any film depends on various
components of the motion picture production system.The
camera and projector lenses and film printers, among other
factors, all play a role. But the specific sharpness of a film
can be measured and charted in the Modulation Transfer
Curve.
1.0
rms Granularity
Refer to curve.
Read with a microdensitometer using a 48-micrometer
aperture.
The “perception” of the graininess of any film is highly
dependent on scene content, complexity, color, and density.
Other factors, such as film age, processing, exposure
conditions, and telecine transfer may also have significant
effects.
0.0
4.0
3.0
2.0
1.0
0.0
1.0
2.0
LOG EXPOSURE (lux-seconds)
F010_0262AC
Modulation Transfer Function Curve
200
100
70
50
RESPONSE (%)
30
20
10
7
5
Exposure: Tungsten
Process: 60 Seconds at 68F (24C)
Sensitometry: Diffuse visual
3
2
1
1
2
3 4 5
10
20
50
100
200
600
SPATIAL FREQUENCY (cycles/mm)
F010_0263AC
MTF curve—This graph shows a measure of the visual
sharpness of the film. The x-axis, “Spatial Frequency”,
refers to the number of sine waves per millimeter that can be
resolved. The y-axis, “Response”, corresponds to film
sharpness. The longer and flatter the line, the more sine
waves per millimeter that can be resolved with high degree
of sharpness, and the sharper the film is.
KODAK TRI-X Reversal Film 7266 • H-1-7266t
3
Spectral Sensitivity Curve
rms Granularity Curve
3.4
3.0
Granularity vs. Density (0-3 scale)
3.2
Reversal Process
3.0
2.8
2.6
Density
DENSITY
2.4
2.2
1.0
0.0
-1.0
250
2.0
0.10
1.8
Grain
1.6
1.4
0.05
0.04
0.03
1.2
0.02
1.0
0.01
0.8
0.6
300
350
400
450
500
550
600
650
700
WAVELENGTH (nm)
750
0.006
0.005
0.004
0.003
0.4
Granularity SIGMA D
LOG SENSITIVITY *
2.0
Effective Exposure: 1/10 sec
Process: Recommended Reversal at 76F (24C)
Sensitometry: Diffuse visual
Density: 1.0>Gross Fog
0.002
0.2
2
*Sensitivity = reciprocal of exposure (erg/cm ) required
to produce specified density
F010_0265AC
Spectral Sensitivity Curve—These curves depict the
sensitivity of this film to the spectrum of light.
0.001
0.0
0.0
F010_0264AC
1.0
2.0
3.0
LOG EXPOSURE (lux-seconds)
Note: Sensitometric and Diffuse RMS Granularity curves
are produced on different equipment. A slight variation in
curve shape may be noticed.
To find the rms Granularity value for a given density, find
the density on the left vertical scale and follow horizontally
to the characteristic curve and then go vertically (up or
down) to the granularity curve. At that point, follow
horizontally to the Granularity Sigma D scale on the right.
Read the number and multiply by 1000 for the rms value.
Note: This curve represents granularity based on modified
measuring techniques.
NOTICE: The sensitometric curves and data in this
publication represent product tested under the conditions of
exposure and processing specified. They are representative
of production coatings, and therefore do not apply directly to
a particular box or roll of photographic material. They do not
represent standards or specifications that must be met by
Eastman Kodak Company. The company reserves the right
to change and improve product characteristics at any time.
4
KODAK TRI-X Reversal Film 7266 • H-1-7266t
MORE INFORMATION
Outside the United States and Canada, please contact your Kodak representative.
You can also visit our web site at www.kodak.com/go/motion for further information.
You may want to bookmark our location so you can find us easily the next time.
Films
Cinematographer’s Field Guide
KODAK Publication No. H-2
Image Structure
KODAK Motion Picture Film
KODAK Publication No. H-1
Specification Numbers
Cinematographer’s Field Guide
KODAK Publication No. H-2
Storage
KODAK Motion Picture Film
KODAK Publication No. H-1
The Book of Film Care
KODAK Publication No. H-23
LAD
LAD—Laboratory Aim Density
KODAK Publication No. H-61
Transfer
KODAK Telecine Analysis Film User’s Guide
KODAK Publication No. H-822
KODAK Telecine Exposure Calibration Film User’s Guide
KODAK Publication No. H-807
KODAK TRI-X Reversal Film 7266 • H-1-7266t
5
KODAK TRI-X Reversal Film 7266
Kodak Locations
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THAILAND
Phone: 66-2-271-3040 Ext. 310
KODAK TRI-X Reversal Film 7266
KODAK Publication No. H-1-7266t
Kodak, Eastman, Tri-X, and Wratten are trademarks.
New 8-03
Printed in U.S.A.
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