Olympus OM-1 Repair Manual page 44

B-23
(15) Warning Switch:
When the light is insufficient and below the synchronous range of the
exposure meter, a warning is given in the viewfinder. In case-of various
lenses used, if the light is below the lower limit of the measurable range,
the needle is made to swing approximately 2EV toward the plus (+) side
and not to meet the center of the index.
(Switched off)
When within
the range
Mechanical Section
9125 9124
(Switched in)
When out of
the range
1 - Mechanical Section
Range of Measurement of Each Lens:
MS5014 BV2-17
MS5018 BV2.35-17.35
MS5512 BV1.9-16.9
ON-position of the Warning Switch:
MS5014:
—!__
The range where the warning
switch is turned on
-
ASA 100, SS 1/1.
1.4
-
1
2
_J_
2.8
_l_
4
_i_
S.6
1
MS5018:
1
,
The range where the warning switch
Jrr
turned on
-
ASA 100, SS "B".
1.8
2.8
4
5-6
9
i. * ^ ~ - . /
,_
L
-
_
L_
_i
1 1
mpus.t lenient i