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KODAK PROFESSIONAL PORTRA
400 Film
TECHNICAL DATA COLOR NEGATIVE FILM
KODAK PROFESSIONAL PORTRA 400 is the world's finest
grain high-speed color negative film. At true ISO 400
speed, this film delivers spectacular skin tones plus
exceptional color saturation over a wide range of lighting
conditions. PORTRA 400 Film is the ideal choice for
portrait and fashion photography, as well as for nature,
travel and outdoor photography, where the action is fast or
the lighting can't be controlled.
TECHNOLOGYBENEFIT
•Incorporates Entertainment
Imaging’s KODAK VISION Film
•World’s finest-grain
Technology
400-speed color negative
film
•Antenna Dye Sensitization in
cyan and magenta emulsion
•Ideal for scanning
layers
•Extraordinary enlargement
•Kodak’s Proprietary Targeted
capability from a 35 mm
Advanced Development
negative
Accelerators
•Micro-Structure Optimized
T-GRAIN® Emulsions
•Optimized Emulsion Spectral
Sensitivity and Image Modifier
•Beautiful, natural skin tones
Chemistry
and superb color
reproduction
•Kodak’s Proprietary DIR
Couplers
•Optimized sharpness
•Distinct edges, fine detail
•Unified Film Emulsion
Technology
•Printing compatible with
other KODAK Films
SIZES AVAILABLE
Availability may differ from country to country. See your
dealer who supplies KODAK PROFESSIONAL Products.
SizeFormatCodeBase
1355056
0.13 mm (0.005 inch)
acetate
1202206056
0.10 mm (0.004inch)
acetate
4056
Sheets
0.19mm (0.007inch)
ESTAR Thick
©Eastman Kodak Company, 2010
September 2010 • E-4050
STORAGE AND HANDLING
Store unexposed film at 21°C (70°F) or lower in the
original sealed package. For extended periods, store film at
13°C(55°F) to preserve consistency.
To avoid moisture condensation on film that has been
refrigerated, allow the film to warm up to room
temperature before opening the package. Typical warm-up
times are given in the table below.
Warm-Up Times (Hours) to Reach Room
Size
Temperature of 21°C (70°F) From a Storage
Temperature of:
-18°C (0°F)2°C (35°F)13°C (55°F)
1202201
3
⁄
4
1⁄
2
135 magazine1⁄
2
1⁄
4
1
10-sheet box1⁄
2
11
Load and unload roll-film cameras in subdued light.
Total darkness is required when you load and unload sheet
film holders.
Process film as soon as possible after exposure. Protect
negatives from strong light, and store them in a cool, dry
place. For long- term storage, keep negatives at a
temperature between 2°C (35°F) and 13°C (55°F) and at
a relative humidity between 30 and 35percent.
DARKROOM RECOMMENDATIONS
Do not use a safelight. Handle unprocessed film in total
darkness.

EXPOSURE
Film Speed
Use the speed numbers in the tables below with cameras
or meters marked for ISO, ASA, or DIN speeds or exposure
indexes (EIs). Do not change the film-speed setting when
metering through a filter. Metering through filters may
affect light meter accuracy; see your meter or camera
manual for specific information. For critical work, make a
series of test exposures.
Light Source
Daylight or Electronic Flash
Photolamp (3400 K)
Tungsten (3200 K)
KODAK
WRATTEN
Gelatin Filter
*
None
No. 80B
No. 80A
ISO Speed
400
125
100
Electronic Flash
Use the appropriate guide number 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.
Unit Output (BCPS)
*
350
500
700
1000
1400
2000
2800
4000
5600
8000
*
BCPS = beam candlepower seconds
Guide Number
Distances in FeetMetres
8526
10030
12036
14042
17050
20060
24070
2 8085
340100
400120
*
For best results without special printing.
Daylight
Use the exposures in the table below for average frontlit
subjects from 2hours after sunrise to 2hours before
sunset.
Lighting Conditions
Bright or Hazy Sun on Light Sand or
Snow
Bright or Hazy Sun (Distinct
Shadows)
Weak, Hazy Sun
(Soft Shadows)
Cloudy Bright
(No Shadows)
Heavy Overcast or Open Shade
‡
*
Use f5.6 for backlit close-up subjects.
‡
Subject shaded from the sun but lighted by a large area of sky.
Shutter Speed (second)
and Lens Opening
1500
f16
1500
f11
*
1500
f8< br>1500
f5.6
1500
f4
Fluorescent and High-Intensity Discharge Lamps
Use the color- compensating filters and exposure
adjustments in the tables below as starting points to
expose this film under fluorescent or high- intensity
discharge lamps. For critical applications, make a series of
test exposures under your actual conditions.
To avoid the brightness and color variations that occur
during a single alternating-current cycle, use exposure
timesof 1⁄60second or longer with fluorescent lamps;
with high-intensity discharge lamps, use exposure times of
1⁄125second or longer.
Type of Fluorescent Lamp
Daylight
White
Warm White
Warm White Deluxe
Cool White
Cool White Deluxe
KODAK Color
Compensating
Filter(s)
20R + 5M
40B + 5C
40B + 40C
40B + 50C
30B
40C + 10M
KODAK Color
Compensating
Filter(s)
50B + 70C
5C + 10M
30B + 5C
80R
Exposure
Adjustment
+1 stop
+1 23 stop
+2 stops
+2 stops
+1 stop
+1 stop
Adjustments for Long and Short Exposures
No filter correction or exposure compensation is required
for PORTRA 400 Film for exposures from 1⁄10,000second
to 1second. For critical applications with longer exposure
times, make tests under your conditions.
High-Intensity Discharge
Lamp (CCT)
High-Pressure Sodium
Vapor
Metal Halide
Mercury Vapor with
Phosphor
Mercury Vapor without
Phosphor
Exposure
Adjustment
+2 23 stops
+23 stop
+1 stop
+1 23 stop
2KODAK PROFESSIONAL PORTRA 400 Film • E-4050

RETOUCHING
You can retouch the sheet and 120 220sizes on both the
base side and the emulsion side. Retouch only the
emulsion side on the 135size.
For information on retouching equipment, supplies, and
techniques, see KODAK Publication No. E-71, Retouching
Color Negatives.
PRINTING NEGATIVES
Optical Printing
This film is optimized for printing on KODAK
PROFESSIONAL SUPRA ENDURA VC Digital and ULTRA
ENDURA High Definition Papers.
Make color slides and transparencies by printing the
negatives on KODAK PROFESSIONAL ENDURA
Transparency Display Material or KODAK
PROFESSIONAL ENDURA Clear Display Material.
Make black-and-white prints on any of the materials
mentioned above using the recommendations in KODAK
Publication CIS-274, Printing Black-and-White Images
Without KODAK Black-and-White Papers.
PROCESSING
Process PROFESSIONAL PORTRA 400 Film in KODAK
FLEXICOLOR Chemicals for Process C-41 using the
replenishment and wash rates in the tables below. Note
that the developer replenishment rates are starting-point
recommendations only and may vary due to the amount of
exposure to the film, scene content, and the presence
absence of sprocket holes.
Digital Printing
You can scan your image to a file and print digitally to —
KODAK PROFESSIONAL SUPRA ENDURA VC Digital
Paper
KODAK PROFESSIONAL ULTRA ENDURA Paper
KODAK PROFESSIONAL ULTRA ENDURA High
Definition Paper
KODAK PROFESSIONAL ENDURA Transparency
Display Material
KODAK PROFESSIONAL ENDURA Clear Display
Material
KODAK PROFESSIONAL ENDURA Metallic VC Digital
Paper
Replenishment and Wash Rates
Film
Size
KODAK
KODAK
KODAK
FLEXICOLOR
FLEXICOLOR
FLEXICOLOR
Developer
Bleach III,
Developer
Replenisher
Fixer, and
Replenisher
LORR
Stabilizer
1400 mLm
2
130 mLft
2
1400 mLm
2
130 mLft
2
1722 mLm
2
160 mLft
2
700 mLm
2
65 mLft
2
700 mLm
2
65 mLft
2
861 mLm
2
80 mLft
2
861 mLm
2
80 mLft
2
1023 mLm
2
95 mLft
2
1152 mLm
2
107 mLft
2
Wash
Water
*
31 Lm
2
2.9 Lft
2
31 Lm
2
2.9 Lft
2
59 Lm
2
5.5 Lft
2
135
120
220
4 x 5
inch
*
Rates are for first wash and a two-stage countercurrent final wash. Double
these rates for a single stage final wash.
JUDGING NEGATIVE EXPOSURES
You can check the exposure level with a suitable electronic
densitometer equipped with a filter such as a KODAK
WRATTEN Gelatin Filter No.92 or the red filter for
StatusM densitometry. Depending on the subject and the
light source used for exposure, a normally exposed and
processed color negative measured through the red filter
should have the approximate densities listed below.
Because of the extreme range in skin color, use these red
density values for a normally lit forehead only as a guide.
For best results, use a KODAK Gray Card (gray side).
Area Measured
KODAK Gray Card (gray side) receiving same
illumination as subject
Lightest step (darkest in the negative) of a
KODAK Paper Gray Scale receiving same
illumination as subject
Highest diffuse density on normally lighted
forehead
—light complexion
—dark complexion
Density Reading
0.77 to 0.87
1.13 to 1.23
1.08 to 1.18
0.93 to 1.03
KODAK PROFESSIONAL PORTRA 400 Film • E-40503

SCANNING NEGATIVES
You can easily scan PROFESSIONAL PORTRA 400 Film
negatives with a variety of linear-array-CCD,
area-array-CCD, and PMT film scanners. You can scan
negatives on desktop scanners as well as high-end drum
scanners.
Because no standards exist to define the colored filter
sets that film scanners use to capture the red, green, and
blue information of the film image, each manufacturer’s
scanner has its own characteristic output. The output
depends on the scanner’s sensitivity to the dyes in the film.
This sensitivity is determined by the spectral distribution
of the colored filter sets andor the spectral sensitivity of
the charge- coupled-device (CCD). In addition to these
spectral specifications, scanner output depends on the
look-up tables or matrices that the scanner uses to output
information for CRT monitors, transmission, etc. These
tables or matrices are part of either “plug-in” programs
used with specific software packages designed for image
manipulation, updateable ROMs included with the
equipment, or fixed algorithms for calibrating and
balancing, similar to those used in photographic color
printing equipment.
The generic “color negative film” channel designation
available with scanner software is only a starting point.
You can adjust the final color balance and the
scene-dependent contrast and brightness of an image by
using the scanner’s controls during pre-scan, or by using
an image-manipulation software program or workstation
after acquisition. Some scanners allow you to use “plug- in”
programs to customize scanner setups.
For more information, visit the following Web sites.
To access
Film Terms for KODAK
PHOTO CD Imaging
Workstations
Drivers for KODAK Film
Scanners
Go to
cdFilmTerms
cannerDrivers
IMAGE STRUCTURE
Print Grain Index
The Print Grain Index number refers to a method of
defining graininess in a print made with diffuse-printing
illumination. It replaces rms granularity and has a different
scale which cannot be compared to rms granularity.
•The method uses a uniform perceptual scale, with a
change of four units equaling a just noticeable difference
in graininess to 90percent of observers.
•A Print Grain Index rating of 25 on the scale represents
the approximate visual threshold for graininess. A
higher number indicates an increase in the amount of
graininess observed.
•The standardized inspection (print- to-viewer)
distance for all print sizes is 14inches, the typical
viewing distance for a 4x6-inch print.
•In practice, larger prints will likely be viewed from
distances greater than 14inches, which reduces
apparent graininess.
•Print Grain Index numbers may not represent
graininess observed from more specular printing
illuminants, such as condenser enlargers.
Negative Size: 24 x 36 mm (Size 135)
Print Size in inches
Magnification
Print Grain Index
4 x6
4.4X
37
8x10
8.8X
59
16x20
17.8X
89
Negative Size: 6 x 6 cm (Size 120220)
Print Size in inches
Magnification
Print Grain Index
4 x6
2.6X
25
8x10
4.4X
37
16x20
8.8X
59
Negative Size: 4 x 5 Inches (Sheets)
Print Size in inches
Magnification
Print Grain Index
4x6
1.2X
Less than 25
8x10
2X
Less than 25
16x20
4X
36
For more information, see KODAK Publication No.
E-58, Print Grain Index—An Assessment of Print Graininess
from Color Negative Films.
4KODAK PROFESSIONAL PORTRA 400 Film • E-4050

CURVES
Characteristic Curves
4.0
2.5
Spectral-Dye-Density Curves
Typical densities for a midscale neutral subject
and D-min.
2.0
D
I
F
FU
S
E

S
P
E
C
T
R
A
L

D
E
N
S
I
T
Y
Exposure: Daylight
Densitometry: Status M
Log H Ref: -1.44
3.0
Midscale Neutral
D
E
N
S
I
T
Y
1.5
2.0
1.0
Minimum Density
1.0
B
G
R
0.5
0.0
-4. 0
E4040C
-3.0-2.0-1.00.01.0
0.0
4
W AVELENGTH (nm)
LOG EXPOSURE (lux- seconds)
Spectral-Sensitivity Curves
4.0
Modulation Transfer Function
3.0
Effective Exposure: 150 Second
Exposure: Daylight
Densitometry: Status M
Density: 0.2>D-min
Yellow-
Form ing
Layer
200
100
70
50
30
R< br>E
S
P
O
N
S
E

(
%
)
L
O
G

S
E
N
S
I
T
I
V
I
T
Y
*
B
G
R
2.0
Magenta-
Forming
Layer< br>Cyan-
Forming
Layer
20
10
7
5
3
Exposure: Daylight
Process: C-41
1 .0
0.0
25
2
2
650700750
WAVELENG TH (nm)
*Sensitivity = reciprocal of exposure (ergcm ) required
to produce specified density
1
1
E4040P
2345100
SPATIAL FREQUENCY (cyclesmm)
KODAK PROFESSIONAL PORTRA 400 Film • E-40505

KODAK PROFESSIONAL PORTRA 400 Film
MORE INFORMATION
Kodak has many publications to assist you with
information on Kodak products, equipment, and materials.
The following publications are available from Kodak
Customer Service, or you can contact Kodak in your
country for more inf ormation.
E-30
E-58
E-71
E-4021
E-4 020
E-4038
E-4028
E-4035
J-38
Z-131
Storage and Care of KODAK Photographic
Materials—Before and After Processing
Print Grain Index
Retouching Color Negatives
KODAK PROFESSIONAL PORTRA and SUPRA
ENDURA Papers
KODAK PROFESSIONAL ULTRA ENDURA Paper
KODAK PROFESSIONAL ENDURA Transparency
and Clear Display Materials
KODAK PROFESSIONAL ENDURA Metallic
Paper
KODAK PROFESSIONAL ULTRA COLOR 100UC
and 400UC Films
Using KODAK FLEXICOLOR Chemicals in
Sink-Line, Bath, and Rotary-Tube Processors
Using KODAK FLEXICOLOR Chemicals
For the latest version of technical support publications for KODAK
PROFESSIONAL Products, visit Kodak on-line at:
http:rofessional
If you have questions about KODAK PROFESSIONAL Products,
call Kodak.
In the U.S.A.:
1-800-242-2424, Ext. 19, Monday–Friday
9 a.m.–7 p.m. (Eastern time)
In Canada:
1-800-465-6325, Monday–Friday
8 a.m.–5 p.m. (Eastern time)
Note: The Kodak materials described in this publication for
use with KODAK PROFESSIONAL PORTRA Films are
available from dealers who supply KODAK
PROFESSIONAL Products. You can use other materials,
but you may not obtain similar results.
Kodak, Kodak Professional, Endura, Estar, Flexicolor, Portra, Supra, T-Grain, Ultra, and
Wratten are trademarks.
New 9-10
Printed in U.S.A.
KODAK PROFESSIONAL PORTRA 400
Film
KODAK Publication No. E-4050
Film & Photofinishing Systems Group
EASTMAN KODAK COMPANY • ROCHESTER, NY 14650