That's a new one on me! Are you using hot, fresh, silver oxide
batteries? The self-timer uses a bit of power before firing the
shutter, so if your batteries are marginal, the camera will sometimes
begin locking up in self-timer mode before it will shooting "normally"
-- maybe that's affecting the exposures, too.
John Hudson wrote:
> Here's a question for the technical types on the list. After setting a
> shutter speed and aperture, whether through auto, spot metering or
> manual mode, the camera should fire accordingly. When the camera is
> set to fire on the self timer, and the shutter / aperture are set as
> above, is there anything on board the camera that could serve to
> lengthen the shutter speed or enlarge the aperture? With my OM4T
> recently returned from a CLA by the Olympus agents in Ontario I have
> now discovered any blip. When shooting the fall colours on slide film
> my hand held exposures are virtually perfect. When relying on a tripod
> and the self timer, my exposures are uniformly too light by about 3/4
> of a stop regardless of shutter speed and aperture chosen. The only
> variable to explain this looks to be the use of the self timer. John
> Hudson
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