Okay, you are forcing someone to answer, I think many people know the answer
but may be this is not an interesting topic, I have the F280 and a 4Ti but
never used the <1/60s manual mode+Super FP feature:
> ...What, actually, is the difference? I guess the best way to say it is:
> Given a shutter speed of 1/60 or slower, what's the difference between the
> following:
> flash = Super FP
> camera = MANUAL
>
In this mode the flash is emitting a 1/25s long flash, the GN is fixed at
48.2-ft, it gives you a sense of motion even flash are used, which is not
possible with normal flash which the flash duration is from 1/500s to
1/40000s (T32) fast enough to freeze most actions. In this setting the
aperture has to take care with the GN-distance rule and the shutter has to
be set to prevent the ambient light from too strong. May be starting from -1
stop and make some trial.
> flash = NORMAL
> camera = AUTO
Simply TTL auto and which fixed the shutter at 1/60s flash sync.
And the third mode is super FP - flash set at Super FP mode and camera in
auto, shutter speed must be greater than 1/60s to trigger the flash. In this
mode the effectiveness (working distance) of the flash is dependent on the
ambient light intensity. Vitally independent on the shutter, aperture and
film speed.
C.H.Ling
----- Original Message -----
From: "Robert Swier" <rswier@xxxxxxxxxxxxxxxx>
To: <olympus@xxxxxxxxxxxxxxx>
Sent: Monday, April 15, 2002 11:32 PM
Subject: Re: [OM] F280/OM4t questions
> Mike -- It's not that you missed the reply, it's that no one replied.
Which,
> I have to say, surprised me. Since no one seems to be able to say why one
> would use the f280 in super FP mode with an OM4T in manual mode with a
> shutter speed slower than 1/60, I think that either 1) the answer is
> painfully obvious, or 2) almost no one knows. Since at least some people
are
> typically willing to answer painfully obvious questions, that makes me
think
> its more likely that almost nobody knows the answer.
>
> I'm partly disappointed in Olympus for providing such inadequate
> instructions with the F280, but perhaps the simplification of the
> instruction book is intended to make the flash seem more user-friendly?
They
> should have realized that the primary consumers of System gear these days
> are the kind of people who will want the details.
>
> But more than that, I'm surprised that no one on the list seems to have
> figured out what the difference is. It seems to me that anyone using an
> OM4t/F280 combination would have wondered about this strange suggestion in
> the instruction manual, and that people seem to know enough about the
inner
> workings of this equipment to have figured out the answer.
>
> Is it really true that no one knows?
>
> Robert Swier
> Rochester, NY
>
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