Black and White Reversal Film

KODAK TRI-X Reversal Film 7266 (16 mm) Technical Data 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. Download an Adobe AcrobatTM version of this file for printing. ( 835K, 4pgs) Get the Adobe Acrobat® Reader for your Palm OS  Contents Base Darkroom Recommendations Exposure Indexes Exposure Table For Tungsten Light Reversal Processing Curves  Reciprocity Storage Identification Available Roll Lengths Printable Curves Base KODAK TRI-X Reversal Film 7266 has a gray acetate safety base with an additional antihalation undercoat. The back side of the base contains an antistatic layer with a carnauba wax lubricant. Darkroom Recommendations Reversal Processing All processing operations should be carried out in total darkness until the bleaching step has been completed. Negative Processing This film can be processed as a negative by conventional methods and will yield satisfactory results. Some loss in speed and an increase in granularity will likely occur. Ask your processing lab technician for more information and recommendations. No safelight is recommended until after the stop bath. Unprocessed films must be handled in total darkness. Exposure Indexes (For development to a gamma of 0.65) Tungsten (3200K) - 160 Daylight - 200 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 light- or dark-colored subjects, decrease or increase the exposure indicated by the meter accordingly. Exposure Table For Tungsten Light At 24 frames per second (fps), 170° shutter opening: Lens Aperture f/1.4 f/2 f/2.8 f/4 f/5.6 f/8 Foot-candles required* 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. Filter Factors FILTER FACTORS KODAK WRATTEN Filter No. 3 8 8N5 12 15 21 23A 25 29 96~ Filter Factor for Daylight 1.5 2 4 2 2.5 3 5 10 40 8 ~For 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. Reversal Processing KODAK B&W Reversal Process Chemicals 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, Processing KODAK Motion Picture Films, Module 15, Processing Black-and-White Films. 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.

Curves

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.

Characteristic Curve

MTF

The "perceived" sharpness of any film depends on various components of the motion picture production system. The camera and projector lenses, film printers, and other factors all play a role. The specific sharpness of a film can be measured and charted in the Modulation Transfer Curve.

Spectral Sensitivity Curve

RMS Granularity 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 affect the look of the film.

Printable Curves

Note: These photographic modulation-transfer values were determined by using a method similar to the one described in ANSI Standard PH2.39-1977(R1992). The film was exposed with the specified illuminant to spatially varying sinusoidal test patterns having an aerial image modulation of a nominal 60 percent at the image plane, with processing as indicated. In most cases, the photographic modulation-transfer values are influenced by development-adjacency effects and are not equivalent to the true optical modulation-transfer curve of emulsion layer in the particular photographic product.

Notice: While the data presented are typical of production coatings, they do not represent standards which must be met by Kodak. Varying storage, exposure, and processing conditions will affect results. The company reserves the right to change and improve product characteristics at any time.

Reciprocity

No exposure adjustment is required for exposure times from 1/1,000 to 1 second.

Storage

Store unexposed film at 13°C (55°F) or lower. Process exposed film promptly. Store processed film at 10°C (50°F) or lower at a relative humidity of 20 to 30 percent for normal commercial storage. For more information on long-term storage, see KODAK Publications No.H-1, KODAK Motion Picture Film, and No. H-23, The Book of Film Care.

Identification

After processing, the product code number 7266, emulsion and roll number identification, emulsion letter designator ED, and EASTMAN KEYKODE Number are visible along the length of the film.

Available Roll Lengths

For information on film roll lengths, check Kodak's Motion Picture Films product catalog or see a Kodak sales representative in your country.

Kodak, Eastman, Keykode, TRI-X, and Wratten are trademarks.
©Eastman Kodak Company 2003