On Mon, 29 Oct 2001 23:45:27 +0100, "Hans van Veluwen"
<hcvanveluwen@xxxxxxxxx> wrote:
>Erwin claims that his OM-1 does 2nd curtain synchro, i.e. the flash is fired
>just before the shutter closes. I know mine doesn't. Is there an error in
>his, or is this some modification?
AFAIK it can't be done on OM1, but for any of the range with OTF
shutter control (OM2 upwards) there is a "kludge" for those occasions
when 2nd curtain sync is needed, especially with longish initial
(pre-flash) exposures. It's simple provided the conditions are such
that the shutter (in auto) would stay open for a longish time (several
seconds, say). Press the release button and then fire the flash
*manually* after the desired time. That will close the shutter just
after the flash fires. Obviously the camera will not terminate the
flash under OTF conditions, so the gun will have to be set in manual
or its non-OTF auto mode.
It would be possible to make a delay unit that fires the flash at some
chosen pre-set time after it has been "told" by the camera to do so.
John Gruffydd (Mold, Wales, UK)
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