In a message dated 5/25/99 11:24:18 AM Pacific Daylight Time,
george@xxxxxxxxxxxxxxxxxx writes:
<< Had it been (or if it is) analog, there might be a
resistor or capacitor that could be swapped. Even then, however, the
discrete elements would probably be in some sort of packs that would
make this option undoable as well. Course, you could take the top off
and cut some wires and insert your own circuit! Me, I think I must live
with the 12 seconds. >>
Although I don't have a factory service manual for the OM2S, I do have
schematics and I checked and verified that the timer is part of a digital not
analog chip. The chip runs off a xtal controlled clock which runs at 32kHz
external that is multiplied up to 500kHz for the processor itself. In theory
you could up the clock frequency to speed things up when the timer sw is
selected and then once the exposure starts (using say the signal for the
mirror or first shutter) switch back to the normal xtal, however this is
probably too much work. Interestingly the OM2S is still substantially analog
not digital using an integrator and comparator for auto exposure.
Tim Hughes
Hi100@xxxxxxx
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