At 16:00 7/18/02, Bob Gries wrote (in part):
Otherwise, I'm not sure what could be broken as it does not have an
aperture lever.
It does have one . . . but unlike the AUTO lenses, it's permanently fixed
in place and doesn't move when changing the aperture setting. It's
required to bias the metering to a proper f/2.8 reading with the lens wide
open. When manually stopping the lens down to make a TTL meter reading,
the reduced aperture diameter cuts down light and the reading becomes a
combination of the baseline biasing plus the reduced light passing through
the lens.
Found when using it with my OM-1n I must wait a few seconds for its CdS
(??) meter cell(s) to "settle down" to the reduction in light passing
through the lens. This is unlike the OM-2S and OM-4 metering which respond
immediately to stop-down.
-- John
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