On Fri, 9 Nov 2001, Stephan VAN DEN ZEGEL wrote:
om3 definitively suffers from... very severe battery drain (1 week)... even
when the meter is reputedly not on...
except when you put it on B so that every thing is really shut down... and
since on B, the meter doesn't appear in the finder (when you push the
trigger halfways nothing happens)... it's just like the off switch of an
om1... just that as usual it was not explained in the manual...
Setting the speed to "B" doesn't turn off the circuits, it only ensures the
meter will not come on if the shutter release button is pressed half way.
The OM-2S/3/4 circuits are always "on" unless you remove the batteries.
The OM-1/2 circuits are turned off (battery disconnected) when the switch
is in the "off" position.
-mark