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©Eastman Kodak Company, 2004

January 2004 • F-4036

TECHNICAL DATA /

BLACK-AND-WHITE FILM

KODAK PROFESSIONAL BW400CN

Film

KODAK PROFESSIONAL BW400CN Film is a

multi-purpose 400-speed black-and-white chromogenic film

designed for processing in color negative chemistry and

printing on color negative paper.

BW400CN Film features the finest grain available today

in a professional chromogenic film. The result is a smooth,

neutral tone image with outstanding highlight and shadow

detail.

This film is designed for portrait/wedding, commercial

and advanced amateur photographers looking for the power

of black-and-white imagery coupled with the convenience of

using Process C-41 for film and Process RA-4 for color

prints.

This film is intended for exposure with daylight,

electronic flash, and artificial illumination. You can also

obtain pleasing results under other light sources, i.e.

illumination in stadiums, without using filters.

Use KODAK FLEXICOLOR Chemicals for Process C-41

and process this film simultaneously with color negative

films. This film can be printed on KODAK

PROFESSIONAL PORTRA ENDURA, SUPRA

ENDURA, and ULTRA ENDURA Papers, as well as other

color negative papers.

Features Benefits

• KODAK T-GRAIN®

Emulsions

• Extremely fine grain and high

sharpness

• Excellent quality and detail in

enlargements

• Neutral, predictable results with a

variety of printing devices

• High quality film scans for ease of

use in digital applications

• For processing in

KODAK FLEXICOLOR

Chemicals, Process

C-41

• Rapid turnaround in any lab that

processes color negative film

• Neutral-toned black-and-white

prints from color processes

• Optimized for printing

on color negative

papers

• Smooth, neutral images with

outstanding highlight and

shadow detail

SIZES AVAILABLE

Catalog numbers and packaging may vary from country to

country. See your dealer who supplies KODAK

PROFESSIONAL Products.

STORAGE AND HANDLING

Before Exposure

Load and unload your camera in subdued light.

High temperatures or high humidity may produce

unwanted quality changes. Store unexposed film at 21°C

(70°F) or lower in the original package. Always store film

(exposed or unexposed) in a cool, dry place. Though this

film has excellent latent image keeping characteristics (after

exposure, but before processing), 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 on storing negatives,

see KODAK Publication No. E-30, Storage and Care of

Photographic Materials—Before and After Processing.

DARKROOM RECOMMENDATIONS

Do not use a safelight. Handle unprocessed film in total

darkness.

Size Base

CAT No.

(US &

Canada)

CAT No.

(except

US & C)

135-24

0.13 mm (0.005 in)

acetate

N/A 860 7640

135-36 897 6995 130 4740

135-36 / 5 pk 183 3136 839 8075

120 (single)

0.10 mm (0.0039 in)

acetate

N/A 126 5412

120 / 5 pk 899 0558 873 9286

220 / 5 pk 146 9717 N/A

Summary of content (6 pages)

PAGE 1
January 2004 • F-4036 TECHNICAL DATA / BLACK-AND-WHITE FILM KODAK PROFESSIONAL BW400CN Film KODAK PROFESSIONAL BW400CN Film is a multi-purpose 400-speed black-and-white chromogenic film designed for processing in color negative chemistry and printing on color negative paper. BW400CN Film features the finest grain available today in a professional chromogenic film. The result is a smooth, neutral tone image with outstanding highlight and shadow detail.
PAGE 2
EXPOSURE Electronic Flash Daylight Exposure: Use the guide numbers in the table below as starting-point recommendations for your equipment. Select the unit output closest to the number given by your flash manufacturer. Then find the guide number for feet or metres. To determine the lens opening, divide the guide number by the flash-to-subject distance. If negatives are consistently too dense (overexposed), use a higher guide number; if they are too thin (underexposed), use a lower number.
PAGE 3
PROCESSING RETOUCHING Process BW400CN Film in KODAK FLEXICOLOR Chemicals for Process C-41. You can have this film processed by any photofinisher who processes color negative films like KODAK PROFESSIONAL PORTRA Film. BW400CN Film is fully compatible with Process C-41, and can be intermixed with color negative films during processing in all equipment, from minilabs to high volume continuous, roller transport, or rack-and-tank processors.
PAGE 4
. View the negative without using a filter. If a retouched area appears slightly red or slightly cyan, add a very small amount of the opposite-colored dye until the area appears neutral. After you have finished retouching and the negative is dry, sandwich the PORTRA 400BW negative with a piece of unexposed and processed D-min of another color negative film, such as KODAK PROFESSIONAL PORTRA 160VC Film.
PAGE 5
IMAGE STRUCTURE CURVES Sharpness: Extremely high Degree of Enlargement: Extremely high Characteristic Curve 4.0 Print Grain Index Magnification Table: Exposure: Daylight Densitometry: Status M Log H Ref: -1.44 Print Grain Index numbers for diffuse printing illumination. • This is a method which replaces rms granularity. It is on a different scale, which cannot be compared to rms granularity. B 3.
PAGE 6
KODAK PROFESSIONAL BW400CN Film MORE INFORMATION Spectral-Dye-Density Curves Kodak has many publications to assist you with information on Kodak products, equipment, and materials. The following publications are available from Kodak Customer Service, from dealers who sell Kodak products, or you can contact Kodak in your country for more information. 2.5 Typical densities for a midscale neutral subject and D-min. DIFFUSE SPECTRAL DENSITY 2.