No, I just tested my F280, full dump in auto mode recycle time 7.5
seconds. Mounted on OM4Ti set at Super FP, point the camera to
light bulb let the shutter speed go to around 1/500s, recycle time 4 seconds.
"You are partially right, I just made it too simply, I know the
camera adjusts
shutter speed according to flash reflection from the film/curtain. But the
flash is under controlled, the flash duration is from 1/25 to 1/50
on the OM4Ti
and 1/30 to 1/70 on the OM707. It depends on the shutter speed
reading from the
sensor/2nd mirror reflection (not OTF)."
Where did you find this? I've never seen it in any Olympus documentation. If
this is true...
It is mentioned in the Olympus OM System brochure, see below link
for a scan of the F280 data:
http://www.glink.net.hk/~photogrp/F280.JPG
The F280 is intelligent in Super FP mode, the flash duration varies,
you can even get higher GN with OM707.
C.H.Ling
Are you jumping to a conclusion? The engineers who designed the F280
could just as easily have decided to just cut off flash duration at
higher shutter speeds to save charge. Variation in flash duration
does not necessarily mean that there is a smart flash system.
On the other hand, maybe I am wrong. It would seem logical to me that
since the F280 acts like a constant light source added to the picture
that its light would be added into the automatic shutter calculation.
That would certainly increase the number of successful F280
exposures. Otherwise they would somehow have to use the extra contact
on the flash to cause the automatic setting of the shutter to ignore
light from the flash and how would they do that? Easier just to let
the camera operate normally integrating all the light in the scene
into the final shutter calculation.
--
Winsor Crosby
Long Beach, California
?
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