Model 636 Ambient Exposure This test measure the
energy on the film plane during an ambient exposure
at 100 cd/sq ft scene brightness.
NOTE: The following test assumes the camera is on
the horn, against the light source.
DETAILED PROCEDURE SUMMARY
1. Turn the test selector switch 1. Selector to 600 EXPOSURE
to 600 EXPOSURE.
2. Flip mode switch to EXPOSURE. 2. Mode switch to EXPOSURE
3. Set the light source selector 3. Light source to 100 cd/sf to 100 cd/sq ft
4. With the photocell uncovered, 4. Press S1
press S1 only.
5. When exposure is made, record 5. Compare reading to spec.
the reading shown on the
Relative Error in Stops meter.
Compare reading to specification.
6. Repeat steps 4 and 5 two more 6. Repeat 4 & 5 twice.
times to insure accurate reading.
7. If the reading is not within 7. If out of spec, see Adjustments.
specification, refer to
Adjustments.
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