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Electronic Flash:
Use the guide numbers in the table below as starting-point
recommendations for your equipment. To determine the
lens opening, divide the guide number by the
flash-to-subject distance.
Unit Output
1
(BCPS)
350
500
700
1000
1400
2000
2800
4000
5600
8000
1
BCPS = beam candlepower seconds
Filters
For light sources other than daylight, use the filtration and
exposure compensation in the table below.
KODAK WRATTEN
Light Source
Gelatin Filter
Photolamp (3400 K)
No. 80B
Tungsten (3200 K)
No. 80A
Note: Do not change the film speed setting when metering
through a filter. Metering through filters may affect light
meter accuracy; see the meter manual (or camera manual
for built-in meters) for specific information.
2
Guide Number
Distances in Feet/Metres
85/26
100/30
120/36
140/42
170/50
200/60
240/70
280/85
340/100
400/120
Exposure
Adjustment
+ 1 2/3 stops
+ 2 stops
Fluorescent and High Intensity Discharge Light:
Though this film is tolerant of mixed-lighting situations, for
best color results under uniform fluorescent or
high-intensity discharge sources, use the exposure and
filter recommendations given below. These
recommendations are starting points.
Actual filtration may vary between lamps and lamp
manufacturers. Depending on the specific source,
additional filtration or special printing may be required to
achieve best results.
To avoid the brightness and color variations that occur
during a single alternating-current cycle, use exposure
times of 1/60 second or longer with fluorescent lamps;
with high-intensity lamps, use exposure times of 1/125
second or longer.
Fluorescent Light Source
Fluorescent Lamp Type
"Daylight"
White
Warm White
Warm White Deluxe
Cool White
Cool White Deluxe
Average fluorescent, or
unknown lamp
High-Intensity Discharge Lamp Source
High-Intensity Discharge
Lamp Type
High Pressure Sodium Vapor
Metal Halide
Mercury Vapor with Phosphor
Mercury Vapor w/o Phosphor
(clear envelope)
Reciprocity
Compensation for reciprocity failure is not necessary for
exposures of 1/10,000 second to 10 seconds. Exposures
longer than 10 seconds may require exposure
compensation and/or filtration, and should be tested for
the application.
KODAK HAWKEYE Traffic Surveillance Color Film • TI-2420
KODAK Color
Exposure
Compensating
Adjustment
Filter(s)
40R
+ 2/3 stop
20C + 30M
+ 1 stop
40B
+ 1 stop
30B + 30C
+ 1 1/3 stops
30M
+ 2/3 stop
20C + 10M
+ 2/3 stop
10C + 20M
+ 2/3 stop
KODAK Color
Exposure
Compensating
Adjustment
Filter(s)
70B + 50C
+ 3 stops
10R + 20M
+ 2/3 stop
20R + 20M
+ 2/3 stop
80R
+ 1 2/3 stops
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