EASTMAN Fine Grain Duplicating Panchromatic Negative Film 5234 / 7234

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Contents

• Description
• Base
• Darkroom Recommendations
• Storage
• Exposure
• Recommended Control Gamma
• Processing
• Identification
• Image Structure
  • MTF
  • rms Granularity
• Available Roll Lengths
• Curves
• Printable Curves

Description

EASTMAN Fine Grain Duplicating Panchromatic Negative Film 5234/7234 and EASTMAN Fine Grain Duplicating Panchromatic Negative Film 2234/3234, ESTAR Base, are characterized by very high sharpness. They have panchromatic sensitivity. These low-speed, black-and-white films are designed for making duplicate negatives from master positives, or internegatives from reversal originals. When used with EASTMAN Fine Grain Duplicating Positive Film 5366/7366, they produce negatives nearly equal to the original negative in tone rendering and printing detail.

Base

5234/7234 Film has a gray acetate safety base. The back side of the base contains an anti-static layer with a carnauba wax lubricant.

2234/3234 Film has a gray ESTAR (polyester) base. The backside of the base contains a process-surviving anti-static layer.

Darkroom Recommendations

Use a KODAK No. 3 Safelight Filter / dark green, with a 15-watt bulb, no closer to the film than 1.2 metres (4 feet).

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 25°C (77°F) or lower at a relative humidity of 20 to 50 percent; for extended-term storage (for preservation of material having permanent value), store at 21°C (70°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 RP131-1998, and KODAK Publications No. H-1, KODAK Motion Picture Film, and No. H-23, The Book of Film Care.

Exposure

The following are starting point recommendations for making a duplicate negative from a master positive of average density:

Continuous printer (such as Bell and Howell, Model D)

500-watt lamp at 80 volts dc (with diffuser)

KODAK WRATTEN Neutral Density Filter No. 96 (D = 1.00)

KODAK Heat Absorbing Glass, No. 2043 (4 mm)

Printer speed = 90 ft/min

Diaphragm setting = 22

Recommended Control Gamma

2234/3234/5234/7234 Film should be developed to a recommended control gamma of 0.60 to 0.70 (Status M Densitometry with a blue filter), depending on the gamma of the original negative and master positive.

Processing

The following process recommendations should be used as starting points for most conventional continuous-immersion processors with solutions prepared according to the formulas in KODAK Publication No.H-24.15, Manual for Processing KODAK Motion Picture Films, Module 15. The processing times may require modification for a particular machine.

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

In a conventional convection-type drying cabinet with air at about 95°F (35°C) and 40 to 50 percent RH, drying will take 15 to 20 minutes. With an impingement-type drying cabinet, however, with a higher temperature and lower RH, drying time is greatly reduced. With either type of dryer, the film should be dry without tackiness 1/2 to 2/3 of the way through. Upon cooling to room temperature after leaving the dryer, the film should be in equilibrium with the room air at approximately 50 percent RH.

Identification

After processing, the product code numbers 2234, 3234, 5234, or 7234; emulsion and roll identification; and KEYKODE number (KD) are visible along the length of the film.

Image Structure

MTF

The modulation-transfer curves, the diffuse rms granularity, and the resolving-power data were generated from samples of 5234 Film exposed with tungsten light and processed as recommended in Process D-96 at 70°F (21°C) to the recommended control gamma. For more information on image-structure characteristics, see KODAK Publication No. H-1, KODAK Motion Picture Film.

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.

Available Roll Lengths

For information on film roll lengths, check KODAK Motion Picture Film Price Catalog or see a Kodak sales representative in your country.

Curves

   MTF 
Note: These photographic modulation-transfer values were determined by using a method similar to the one described in ANSI/PIMA Standard IT9.39-1998. The film was exposed with the specified illuminant to spatially varying sinusoidal test patterns having an aerial image modulation of a nominal 35 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 the emulsion layer in the particular photographic product.

   Characteristic 
Base density = 0.26

   Spectral Sensitivity 
Spectral Sensitivity Curve—These curves depict the sensitivity of this film to the spectrum of light.

Printable Curves

Note: The contents of this publication are subject to change without notice.

Kodak, Eastman, Keycode, and Wratten are trademarks.

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Footnotes\Notices

NOTICE: The 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 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.

TI0147 • Revised 3-04