Kodak Tri-X SP457 Reversal Film 7266

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.

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       Foot-candles required*
f/1.4                         16
f/2                            32
f/2.8                         64
f/4                            125
f/5.6                         250
f/8                            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 KODAK WRATTEN Filter No.        Filter Factor for Daylight
3                                                                                    1.5
8                                                                                    2
8N5                                                                               4
12                                                                                  2
15                                                                                  2.5
21                                                                                  3
23A                                                                               5
25                                                                                  10
29                                                                                  40  
96~                                                                                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.

Process Step                                                      Time24.4°C (76°F)

First Developer
 KODAK B&W Reversal First Developer                 60 sec
 (D-94A)
 Wash                                                                        30 sec
 KODAK B&W Reversal Bleach (R-10)                   60 sec
 Wash                                                                        30 sec
 Clearing Bath                                                            30 sec
 Wash                                                                        30 sec
 Re-exposure                                                             800 footcandle seconds
Second Developer
 KODAK B&W Reversal Developer (D-95)             30 sec
 Wash                                                                        30 sec
 Fixer                                                                         30 sec
 Wash                                                                        60 sec

Notice: Observe precautionary information on product labels and on the Material Safety Data Sheets.

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
Spectral Sensitivity Curve
RMS Granularity Curve
Printable Curves

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.