VERY DIM ILLUMINATION
At times you may want to make an exposure under
lighting conditions whereby the pointer is not
appreciably deflected with the flip-up boaster in
operation. in this case, a fairly good exposure may be
obtained by measuring the light intensity of the source,
say an open window or distant artificial lighting. From
the position of the subject, point the meter with the
cover open and the flip-up boaster switched in, at the
principle source of light falling on the subject The
exposure combination that you select with the block
index should be multiplied by 10. For example, if far a
lens opening of f/11 1, the shutter speed is one fifth
second, the correct exposure time is then two seconds
(10 times one-fifth).
You may find the factor ten not to be always correct. This factor may vary between 8 and fifteen or more. Use a
tripod for exposures for a twenty-fifth of a second and longer
TECHNICAL DATA
The exposure to photograph an average scene is determined by this formula:
For Reflected Light T = K. A over B. S.
T: Exposure time in Second
A: Relative Aperture (f/stop)
B Brightness, reflected light, in Candles per sq. ft.
S: ASA. Film Index.
K: ASA Calibration Constant Reflected light
SEKONIC AUTO-LEADER L 38
K = 1.16
WARRANT!
The Sekonic Autoleader L-38 has been carefully inspected before shipment. Should it prove to be defective
within 90 cloys after date of purchase, it will be repaired or replaced free of charge.
This guarantee does not apply to meters which have been mishandled or tampered.
CARE OF YOUR SERONIC AUTO- LEADER L- 38
The Sekonic AUTO LEADER L 38 is a high-class precision instrument.
Treat it carefully and it will give you years of service. The very sensitive -microammeter is protected from
normal shack by special ruggedization. The photo-electric cells will not, for reason of the free electron
phenomenon run dawn or become weak. The following points should be observed
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