In a message dated 11/1/99 10:13:09 AM Eastern Standard Time,
dbulger@xxxxxxxxxxxxx writes:
> While taking pics of the kids in costumes last night with my OM2s and a T20,
> I noticed that the "exposure successful" light both in the viewfinder and
on
> the back of the flash would only sometimes indicate that the exposure was
> good -- other times it would not do it's rapid flash thing. I tried this
in
> Program, Auto and Spot/Manual modes, with the T20 in both "Full Control"
and
> Auto modes. I got no "exposure successful" light on anything but T20 Auto
> mode @ f8 and the OM2s in program mode.
>
> Stats: OM2s with a T20 flash mounted on camera. ISO 100 film. All
subjects
> between 8 and 10 feet from camera. While in auto and program modes I had
> the aperture of the lens set at 22 in order to give the camera the most
> options.
If you were using f22 in the OM-2S's normal auto (TTL) mode, you probably
will not get sufficient exposure. In program mode, with the lens set at f22,
the OM-2S can select any available aperture. I *think* with program flash it
stops down 3 stops. So if you are using an f4 zoom it will stop down to f11.
In auto mode, what you set for an aperture is what you get. The T20 isn't
powerful enough to reach 10 ft at f22 with ISO 100 film. Open up to f8 and
you should get about the same results as T20 auto mode at f8.
Hope this helps,
Paul Schings
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