Jan Steinman wrote about OM-2,4 flash synch:
> When the shutter closes because of the flash quenching,
> the shutter speed happens to be 1/60th!
That's the impression I get from the Olympus material. But
Michael Huber has in his book on the OM-2SP (ISBN in FAQ)
the statement that it's actually 1/100. He also has graphs of
vibration v. time with events like the mirror going up and
down and the curtain firings marked. This leads me to suspect
that he arrived at 1/100 by testing one or more OM-2SP's.
Certainly if Olympus are capable of saying the OM-1 synchs
at 1/30 when we all know it's 1/60, I'd say they're capable
of hiding this light under a bushel. If it is 1/100, it starts
to look less pathetic beside those new cameras which still
have 1/125 synch. (How can anyone even *contemplate* fripperies
like autofocus and autobracketing without getting flash synch up
to the motion-freezing speed of 1/250?)
Huber also mentions a shutter latency (button press to first
curtain firing) of 1/15 second, which he says is fast compared
to other brands of camera. Certainly, after using an OM-1 and
OM-2 for years, my OM-2SP and OM-4 *feel* faster, and the
mirror blackout time seems to be much shorter too. Shorter
also than some expensive new cameras.
(I'm working from memory here; the book went back to the
library.)
I'd be curious to know whether anyone has done this kind
of measurement (astrophotographers, perhaps?). Maybe Huber
only measured one example of one model, and it isn't typical.
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