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RE: [OM] Re: Flash sync & slavery (barely OM)

Subject: RE: [OM] Re: Flash sync & slavery (barely OM)
From: "James N. McBride" <jnmcbr@xxxxxxx>
Date: Tue, 18 Feb 2003 15:20:14 -0700
I've been using the built-in flash on a C2000Z to trigger slaves on two
studio strobes and it seems to work fine. The power on the strobes is set to
a low power so the camera can control exposure. /jim

-----Original Message-----
From: owner-olympus@xxxxxxxxxxxxxxx
[mailto:owner-olympus@xxxxxxxxxxxxxxx]On Behalf Of Jan Steinman
Sent: Tuesday, February 18, 2003 3:01 PM
To: olympus@xxxxxxxxxxxxxxx
Subject: [OM] Re: Flash sync & slavery (barely OM)


Nearly all digital cameras fire a pre-flash that is not associated with
red-eye reduction. It is used to set white balance and exposure. You may be
able to turn it off by shooting in full manual mode, but probably not. If
there is a hot-shoe, you may be able to slap a low-powered manual flash on
there to trigger the slave.

There are expensive slaves that will count and discard pre-flashes, and I've
seen circuits of simple R-C delay filters to go between your slave and your
pack. (Of course that doesn't help if you are using something with a
built-in slave.

The quick answer is, "You're screwed." In general, digicam flashes don't
work with slaves.

(That's one reason I went with the E-20 -- it has a real PC terminal and a
real hot-shoe.)

--
: Jan Steinman -- nature Transography(TM): <http://www.Bytesmiths.com>
: Bytesmiths -- artists' services: <http://www.Bytesmiths.com/Services>
: Buy My Step Van! <http://www.Bytesmiths.com/van>

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