HIGH-SPEED PHOTOGRAPHY
A total of eight high-speed cameras were used to record the side-impact collision. All high-speed cameras were loaded with Kodak color daylight film 2253. The cameras operated at 500 frames/s and were positioned for best viewing of the contact between the Chevrolet C2500 and the Valmont Industries slip away lighting standard. Three 35-mm still cameras and one 16-mm real-time telecine camera were used to document the pre- and post-crash environment. Table 7 lists the position and lens used for each camera. The camera numbers in table 7 are shown in figure 6. The interior of the driver door was painted flat white for better onboard camera image quality.
Table 7. Camera configuration and placement . |
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Camera Number |
Type |
Film Speed (frames/s) |
Lens (mm) |
Location |
1 |
LOCAM II |
500 |
100 |
90° to impact right side |
2 |
LOCAM II |
500 |
50 |
90° to impact right side |
3 |
PHOTEC |
500 |
110 |
45° tight on base right side |
4 |
LOCAM II |
500 |
150 |
180° mounted downstream |
5 |
LOCAM II |
500 |
75 |
45° left-side oblique |
6 |
LOCAM II |
500 |
100 |
90° tight on base left side |
7 |
LOCAM II |
500 |
12.5 |
overhead, over pole |
8 |
LOCAM II |
500 |
5.7 |
onboard in passenger window |
9 |
Bolex |
24 |
zoom |
documentary |
10 |
Canon A-1 (prints) |
still |
zoom |
documentary |
11 |
Canon A-1 (slides) |
still |
zoom |
documentary |
Black and yellow circular targets, and black and yellow target tape 25 mm wide were
placed on the Chevrolet pickup truck for film-data collection purposes. Circular targets
and target tape were placed on the vehicle for certain vehicle measurements and for film
analysis. The 25-mm tape was placed on the driver side of the vehicle at five levels or
elevations referenced from the ground. The levels included:
LEVEL 1 -- Axle centerline or lower door sill top height.
LEVEL 2 -- Occupant H-point height.
LEVEL 3 -- Mid-door height.
