Bonjour,
...En remettant "un peu d'ordre" dans ce "copier-coller" ( désolé, je ne suis pas le Mozart de l'ordinateur !) vous devriez avoir quelques utiles indications.
KODAK VERICHROME Pan Film
—Notice of Discontinuance—
This film has been discontinued. As a recommended alternative, we suggest KODAK PROFESSIONAL T-MAX 100 Film / 100 TMX or KODAK PROFESSIONAL PLUS-X 125 Film / 125 PX. For more information, see KODAK Publications F-4016, KODAK PROFESSIONAL T-MAX Films, and F-4018, KODAK PROFESSIONAL PLUS-X 125 Film, available from
www.kodak.com/go/bwfilms Download an Adobe Acrobat™ version of this file for printing.
Contents
DESCRIPTION
SIZES AVAILABLE
STORAGE AND HANDLING
EXPOSURE
DARKROOM RECOMMENDATIONS
PROCESSING
IMAGE-STRUCTURE CHARACTERISTICS
DESCRIPTION
KODAK VERICHROME Pan Film is a medium-speed (EI 125) panchromatic film that features extremely fine grain. Its excellent gradation and wide exposure latitude make it a good choice for general-purpose applications. This film has characteristics similar to those of KODAK PLUS-X Pan Professional Film, but does not have retouching surfaces.
FEATURES BENEFITS
Extremely fine grain
Excellent for producing high-quality images
Wide exposure latitude
Rich tonality maintained with overexposure and underexposure
Very high sharpness
Excellent for applications that require a high degree of enlargement
High resolving power
Good rendition of detail
SIZES AVAILABLE
Sizes and catalog numbers may differ from country to country. See your dealer who supplies Kodak Professional products.
Roll Base Letter Code CAT No.
120 3.6-mil acetate VP 826 9532
For Cirkut Cameras (Daylight-Loading Rolls)
Size in. x ft Base Letter Code CAT No.
8 x 5 3.6-mil acetate VP 146 9493
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 75° (24°) or lower in the original 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 on storing negatives, see KODAK Publication No. E-30, Storage and Care of Photographic Materials--Before and After Processing.
EXPOSURE
Daylight
Use the exposures in the table below for frontlighted subjects from 2 hours after sunrise to 2 hours before sunset.
Lighting Conditions Shutter Speed (Second) Lens Opening
Bright or Hazy Sun on Light Sand or Snow 1/125 f/22
Bright or Hazy Sun (Distinct Shadows) 1/125 f/16*
Weak, Hazy Sun (Soft Shadows) 1/125 f/11
Cloudy Bright (No Shadows) 1/125 f/8
Heavy Overcast or Open Shade** 1/125 f/5.6
*Use f/8 at 1/125 for backlighted close-up subjects.
**Subject shaded from the sun but lighted by a large area of clear sky.
Electronic Flash
Use the guide numbers in the table below as a starting point for your equipment. Select the unit output closest to the number given by your flash manufacturer. Then find the guide number for feet or meters. To determine the lens opening, divide the guide number by the flash-to-subject distance.
Unit Output BCPS* Guide Number
For Distances in Feet For Distances in Metres
350 45 14
500 55 17
700 65 20
1000 80 24
1400 95 29
2000 110 33
2800 130 40
4000 160 50
5600 190 60
8000 220 65
*BCPS=beam candlepower seconds.
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.
If Indicated Exposure Time is (Seconds) Use This Lens-Aperture Adjustment OR This Adjusted Exposure Time (Seconds) AND Use this Development Adjustment
1/100,000 +1 stop Adjust aperture +20%
1/10,000 + 1/2 stop Adjust aperture +15%
1/1,000 None None +10%
1/100 None None None
1/10 None None None
1 +1 stop 2 -10%
10 +2 stops 50 -20%
100 +3 stops 1,200 -30%
Filter Corrections
Multiply the normal exposure time by the filter factor.
KODAK WRATTEN
Gelatin Filter Daylight Tungsten
Multiply Exposure By
(filter factor) Multiply Exposure By
(filter factor)
No. 8 (yellow) 2 1.5
No. 11 (yellowish green) 4 4
No. 15 (deep yellow) 2.5 1.5
No. 25 (red) 8 5
No. 47 (blue) 6 12
No. 58 (green) 6 6
Polarizing Filter 2.5 2.5
DARKROOM RECOMMENDATIONS
Do not use a safelight. 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 K-4, How Safe is Your Safelight?
PROCESSING
Handle unprocessed film in total darkness.
These starting-point recommendations are intended to produce a contrast index of 0.60. Make tests to determine the best development time for your application.
Small-Tank Processing
Agitate at 30-second intervals.
KODAK Developer Development Time in Minutes
65° (18°) 68° (20°) 70° (21°) 72° (22°) 75° (24°)
T-MAX -- 6 5 1/2 5 4
T-MAX RS -- 4 4 3 1/2 3 1/2
XTOL 7 1/2 6 5 1/4 4 3/4 4
D-76 8 7 5 1/2 5 4 1/2
D-76 (1:1) 11 9 8 7 6
MICRODOL-X 10 9 8 7 6
MICRODOL-X (1:3) 15 14 13 12 11
HC-110 (B) 6 5 4 1/2 4 -
Note: Development times shorter than 5 minutes may produce unsatisfactory uniformity.
Large-Tank Processing
Agitate once per minute.
KODAK Developer Development Time in Minutes
65° (18°) 68° (20°) 70° (21°) 72° (22°) 75° (24°)
T-MAX RS -- 5 1/2 5 5 4
D-76 9 8 7 6 5
D-76 (1:1) 12 1/2 10 9 8 7
MICRODOL-X 11 10 9 8 7
MICRODOL-X (1:3) 20 15 14 13 12
HC-110 (B) 8 6 1/2 6 5 1/2 4 1/2
Note: Development times shorter than 5 minutes may produce unsatisfactory uniformity.
Tray Processing Film for Cirkut Cameras
Provide continuous agitation.
KODAK Developer Development Time in Minutes
65° (18°) 68° (20°) 70° (21°) 72° (22°) 75° (24°)
T-MAX RS 5 4 1/2 4 3 1/2 3
D-76 7 6 5 4 1/2 4
D-76 (1:1) 10 8 7 6 5
MICRODOL-X 9 8 7 6 5
MICRODOL-X (1:3) 14 13 12 11 10
HC-110 (B) 5 4 1/2 4 3 1/2 3
Note: Development times shorter than 5 minutes may produce unsatisfactory uniformity.
Final Steps in Processing—65 to 75° (18 to 24°)
KODAK Chemical Time (min:sec)
Rinse--with agitation:
KODAK Indicator Stop Bath 0:30
Fix--with frequent agitation:
KODAK Fixer 5:00 to 10:00
KODAK Rapid Fixer 2:00 to 4:00
KODAFIX Solution 2:00 to 4:00
Wash--in running water:
-- 20:00 to 30:00
KODAK PHOTO-FLO Solution 0:30
OR
Rinse with water 0:30
KODAK Hypo Clearing Agent 1:00 to 2:00
Wash 5:00
Dry--in a clean, dust-free environment.
IMAGE-STRUCTURE CHARACTERISTICS
The data in this section is based on development at 68° (20°) in KODAK Developer D-76 (1:1) for 9 minutes in a small tank. Contrast Index = 0.60.
Diffuse rms Granularity* 9 Extremely Fine
*Read at a net diffuse density of 1.0 using a 48-micrometer aperture, 12X magnification.
Note: The sensitometric curves and 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 directly 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.
Characteristic Curves—Kodak Developer D-76
Characteristic Curves—Kodak HC-110 Developer (Di B)
Contrast-Index Curves
Kodak, D-76, HC-110, Kodafix, Kodak Professional, Microdol-X, Photo-Flo, Plus-X, T-Max, Verichrome, Xtol,and Wratten are trademarks.
F-7 December 2002
Cordialement.