KODAK PROFESSIONAL PLUS-X 125 Film / 125PX

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Contents

• Description
• Sizes Available
• Storage and Handling
• Exposure
• Daylight
• Exposure and Development Adjustments for Long and Short Exposures
• Filter Corrections
• Darkroom Recommendations
• Processing
• Manual Processing
• Small-Tank Processing (8- or 16-ounce tank)
• Large-Tank Processing (1/2- to 3 1/2-gallon tank)—Rolls and Sheets
• Rotary-Tube Processing
• Push Processing
• Final Steps
• Machine Processing
• Roller-Transport Processors
• Large Tank Rack-and-Tank Processors
• Push Processing: Roller Transport Processors
• Image Structure
• Curves

Description

KODAK PROFESSIONAL PLUS-X 125 Film is a medium-speed, continuous-tone panchromatic film that is a good choice for general-purpose outdoor or studio photography. It features extremely fine grain and excellent sharpness.

KODAK PROFESSIONAL PLUS-X Film is available in 135 size and 35 mm long rolls on a 5-mil gray acetate base, and in 120 and 220 size on a 3.6-mil acetate base. The 120 and 220 sizes have a retouching surface on the emulsion side.

Sizes Available

Catalog numbers and packaging may differ from country to country. See your dealer who supplies KODAK PROFESSIONAL Products.

Storage and Handling

Load and unload your camera in subdued light.

High temperatures or high humidity may produce unwanted quality changes. Store unexposed film at 24°C (75°F) or lower in the original sealed package. Always store film (exposed or unexposed) in a cool, dry place. For best results, process film as soon as possible after exposure.

Protect processed film from strong light, and store it in a cool dry place. For more information, see KODAK Publication No. E-30, Storage and Care of KODAK Films and Papers—Before and After Processing.

Exposure

Daylight

Use the exposures in the table below for average front-lit subjects from 2 hours after sunrise to 2 hours before sunset.

Exposure and Development Adjustments for Long and Short Exposures

At the exposure times in the table below, compensate for the reciprocity characteristics of this film by increasing exposure and adjusting the development as shown.

It may be difficult to use the table to estimate the adjusted times for calculated exposure times between 1 and 100 seconds. The graph that follows will help you find the adjusted times for calculated exposure times between those given in the table.

Filter Corrections

Multiply the normal exposure time by the filter factor.

Darkroom Recommendations

Handle unprocessed film in total darkness.

Using a safelight will affect your results. If absolutely necessary, after development is half complete, you can use a safelight equipped with a KODAK 3 Safelight Filter (dark green) with a 15-watt bulb for a few seconds. Keep the safelight at least 4 feet (1.2 metres) from the film. Run tests to determine that safelight use gives acceptable results for your application.

For information on safelight testing, see KODAK Publication No. K-4, How Safe Is Your Safelight?

Processing

These starting-point recommendations are intended to produce negatives with a contrast appropriate for printing with a diffusion enlarger. To print negatives with a condenser enlarger, you may need to adjust the contrast by reducing your development time. Tank development times shorter than 5 minutes may produce unsatisfactory uniformity.

Manual Processing

Small-Tank Processing (8- or 16-ounce tank)

With small single- or double-reel tanks, drop the loaded film reel into the developer and attach the top to the tank. Firmly tap the tank on the top of the work surface to dislodge any air bubbles. Provide initial agitation of 5 to 7 inversion cycles in 5 seconds; i.e., extend your arm and vigorously twist your wrist 180 degrees.

Then repeat this agitation procedure at 30-second intervals for the rest of the development time.

Large-Tank Processing (1/2- to 3 1/2-gallon tank)—Rolls and Sheets

Agitate continuously for the first 15 to 30 seconds by raising and lowering the basket, rack, or spindle 1/2-inch. Do not agitate the basket, rack, or spindle for the remainder of the first minute. Then agitate once per minute by lifting the basket, rack, or spindle out of the developer, tilting it approximately 30 degrees, draining it for 5 to 10 seconds, and reimmersing it. Alternate the direction of tilting the basket, rack, or spindle.

NR = Not Recommended.

Note: Use only KODAK HC-110 Developer (Dilution B) to process long rolls of PLUS-X Pan Film on spiral reels. Develop for 6 minutes at 68°F (20°C) or 4 1/4 minutes at 75°F (24°C).

Rotary-Tube Processing

Follow the agitation recommendations for your processor. The times given below are starting-point recommendations. Make tests to determine if results at this rating are acceptable for your needs.

Push Processing

Push processing allows you to expose the film at higher film-speed numbers for conditions such as low-level light, stop action, or existing light. However, there will be a loss of shadow detail and an increase in graininess.

Because of the film's exposure latitude, you can underexpose by one stop at EI 250 and use normal processing times. Prints will show a slight loss in shadow detail.

You can underexpose by two stops at EI 500 if you increase development time by push processing. Prints will show an increase in contrast and graininess with further loss of shadow detail. However, results should be acceptable for many applications. Expose a test roll to determine the film speed that gives the best results for your application.

You can underexpose the film by three stops (EI 1000) when you use 3-stop push processing in KODAK XTOL Developer. Prints will show an increase in contrast and graininess, and an additional loss of shadow detail. However, results should be acceptable for some applications. Expose some test rolls to determine the film speed that gives the best results for your application.

NR = Not Recommended.

Final Steps

65 to 75°F (18 to 24°C).

Machine Processing

Roller-Transport Processors

KODAK VERSAMAT Film Processors

You can process this film in roller-transport processors, such as the KODAK VERSAMAT Film Processor, Model 5, 11, or 411, with KODAK DURAFLO RT Developer Starter, KODAK DURAFLO RT Developer Replenisher, and KODAK Rapid Fixer.

The recommended machine speeds for processing KODAK PROFESSIONAL PLUS-X 125 Film to a contrast index of 0.56 is as follows:

You may need to use higher dryer temperatures (135 to 140°F [57 to 60°C]) to dry several sheet films processed in succession. If you are processing only roll films, a lower temperature will be adequate.

Processing Conditions for Other Roller-Transport Processors

Adjust the machine speed so that the development time for normally exposed film is approximately 60 seconds. The development time is measured from the time the film enters the developer to the time it enters the fixer. Differences in machine design that affect agitation and crossover times from one tank to the next may require development-time adjustments.

Replenishment Rates

Developer—Because most film loads will consist of a variety of film types, use an average replenishment rate of 0.20 mL per square inch of film processed.

Fixer—Use 0.55 mL per square inch.

Large Tank Rack-and-Tank Processors

The development times for large-tank rack-and-tank processors are based on a machine speed that transfers the film every 2 minutes. The times given below are starting-point recommendations. Make tests to determine if results are acceptable for your needs.

Replenishment Rates

Stir or recirculate the solution after each addition of replenisher solution.

T-MAX RS Developer—Add 45 mL (1.5 ounces) of replenisher solution for each 135-36 or 120 roll of film processed.

Note: Do not use T-MAX RS Developer and Replenisher to replenish T-MAX Developer. They are not designed to work together.

D-76 and XTOL Developers—Add 70 mL (2.4 ounces) of replenisher solution for each 135-36 or 120 roll of film processed.

Note: Refer to KODAK Publication No. J-78, KODAK PROFESSIONAL Developer D-76, for modified replenisher mixing instructions.

Push Processing: Roller Transport Processors

To process pushed PLUS-X 125 Film in a machine with DURAFLO RT Developer, use a normal machine process with the machine speed shown in the appropriate table below.

Image Structure

The data in this section is based on development in KODAK HC-110 Developer (Dilution B), 70°F  (21°C), 5 minutes in a large tank, with manual agitation at 1-minute intervals.

Curves

Characteristic

KODAK PROFESSIONAL D-76 Developer

KODAK PROFESSIONAL T-MAX Developer

Contrast Index

Small Tank

Small Tank - KODAK XTOL Developer

Large Tank

Large Tank - KODAK XTOL Developer

Spectral Sensitivity

If you have questions or need assistance, contact your local Kodak representative.

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

Kodak, D-76, Duraflo, HC-110, Microdol-X, Photo-Flo, T-Max, T-Max RS, Tri-X, Versamat, Wratten, and Xtol 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.

F4018 • Revised 5-07