----- Original Message ----- 
From: <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, May 19, 2005 6:50 PM
Subject: Re: EOS 550 EX / 580 EX or portable flash



Thanks for your replies!


Does this mean that with a 550/580 EX on camera as master it is'n possible
the set the master light in a lower
output than the slave light? Thus the frontal light will always be stronger?

This indeed is an important issue for modelling light.

Thanks
Leeuwtje
--------------------------------------------------------------

You have a choice of ratio - up and down.

Check out the 1st. item on my website - it's a resume of what I did with two
550EXs some years ago.  The ST-E2, which I bought later, makes setting the
ratios easier.

Malcolm
Milton Keynes, UK
http://www.megalith.freeserve.co.uk/oddimage.htm


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