Re: [OM] 2 Flashes

[Skip Williams]

OK, say you have the flash meter at the subject and the OM-2/T-32 on 
TTL-Auto.  You also have the remote flash on as a slave.  Normally (in 
non-TTL mode), you'd fire the main flash to trigger the slave, and then the 
flashmeter would tell you what aperture to use for the whole setup.
But with TTL-Auto, that is not necessary.  The camera tells the flashes when 
to cut off in real-time via the silicon cell in the camera.
I can't think of anyway to use a flashmeter with this setup.  If you use 
TTL-Auto and take a dummy picture to trigger the proper flash output from 
the T-32, the flash meter will give you an aperture.  If that's different 
than the aperture on the camera and you change the f/stop, the OM-system 
will compensate by adjusting the flash output.  You'll be in a circular 
argument.
I guess with enough fiddling, you could probably get the TTL-Auto/Slave 
Flash setup to work, but it would take quite a bit of trial and error and 
burned film.  A flashmeter wouldn't help, if I'm reasoning correctly.
In the end, it would be much easier to rely upon the T-32's Auto mode 
coupled with the slave flash's output and have the flashmeter give you the 
necessary output.  You could also use the T-32 on manual and dump the whole 
flash capacitor.
Skip


> From: "Richard Allen" <dickallen@xxxxxxxxxxxxxxxxxxx>
> Reply-To: olympus@xxxxxxxxxxxxxxx
> To: <olympus@xxxxxxxxxxxxxxx>
> Subject: Re: [OM] 2 Flashes
> Date: Mon, 25 Mar 2002 18:15:39 -0500
>
> Skip,
> The slave flash wouldn't overwhelm with light if he setup using a
> flashmeter, would it?
> ----- Original Message -----
> From: "Skip Williams" <skipwilliamsom@xxxxxxxxxxx>
> To: <olympus@xxxxxxxxxxxxxxx>
> Cc: <sam.shiell@xxxxxxxxxxxxxxxxxx>
> Sent: Monday, March 25, 2002 12:54 PM
> Subject: Re: [OM] 2 Flashes
>
>
> > You'd have to set the T-32 on one of it's auto modes and meter the setup
> > with a flash meter (or do tests with some chrome).  This would give you 
> an
> > f-stop to use at 1/60 sec synch speed.  Sorry, no auto-exposure for you 
> on
> > this one.  If you put the camera body/T-32 on TTL-auto, the slaved flash
> > will add too much light and swamp the picture.
> >
> > You might have some issues with ambient light balancing though.  It 
> looks
> > like some experimentation is in order.
> >
> > Skip
> >
> >
> > >From: Sam Shiell <sam.shiell@xxxxxxxxxxxxxxxxxx>
> > >Reply-To: olympus@xxxxxxxxxxxxxxx
> > >To: olympus@xxxxxxxxxxxxxxx
> > >Subject: [OM] 2 Flashes
> > >Date: Mon, 25 Mar 2002 17:39:08 -0000
> > >
> > >Hi
> > >
> > >Yet another T32 Flash question....
> > >
> > >I've a OM2n with a T32.
> > >
> > >I've just bought myself a cheap, low powered studio flash - supposedly
> with
> > >a GN of 36 @100asa.
> > >
> > >In the summer we sometimes have barbecue parties that last well into 
> the
> > >evening, and assuming it isn't raining are normal in the garden. I was
> > >thinking that maybe if I stuck this studio flash on a tall stand and 
> used
> > >the T32 on auto, (mounted on the camera with OM2n also on auto) it 
> would
> > >help relieve the "in-a-cave" effect that I normally get using my setup
> out
> > >of doors. It has a built in slave so there'd be no problem getting it 
> to
> > >fire.
> > >
> > >Has anyone tried this sort of thing? I would imagine it'd be difficult
> > >getting the relative light outputs "in balance", but how would the auto
> > >exposure cope with this ?
> > >
> > >Sam
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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