On Thu, 13 Jun 2002, Winsor Crosby wrote:
> >Exposure integration begins when the first curtain is released. There's
> >a nice flow chart and timing diagram on pages I-47 and I-48 of the OM-4
> >service manual that explains all this. Section I has all the gory details
> >of how exposures are arrived at in the OM-4.
> > -mark
>
> Does it say what it is doing between the time that you push down the
> shutter release and when the first curtain is released? The lag is
> not bad for an automatic camera, but not near as good as with a
> manual camera.
According to the diagram, the delay for the OM-4 is 40mS during which time
the display illuminator is turned off and the electromagnet voltages are
stabilising. The timing diagram can be seen on page 50 of the following
pdf: http://olympus.dementia.org/Hardware/PDFs/OM-4_4of4.pdf
-mark
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