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Strobe Exposure Test
Purpose
The Strobe Exposure Test is used to measure the resultant energy of the film plane during a 4.5 ft.
(137 cm) Strobe (Graywall) light exposure.
Setup (Figure 3-3)
1. Open the camera door .
2. Using a solder aid tool, manually trip the camera door switch into its down position.
3. Using a solder aid tool, remove the front cover from the camera.
4. Install the Joshua Test Cover in place of the removed front cover.
5. Set the Joshua Test Cover Strobe/Ambient (STB/AMB) switch to its Strobe (STB) position.
6. Place the camera with the Joshua Test Cover onto the Joshua Horn Assembly.
7. Place the Joshua Horn Assembly on top of the Star Tester (Figure 3-5) at a marked position
137 CM (4.5 Feet) from the Graywall Target.
Figure 3-5. Locating Joshua Horn Assembly and Camera in Relation to Graywall Target
4'
(1.2 M)
4' (1.2 M
4.5' (137CM)
GRAYWALL
TARGET
STAR TESTER
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