[photo-3d] Multiple flash...

[Bill Costa <Bill.Costa@xxxxxxxxxxxxxx>]

    I hope we're not getting too far off the topic of 3D by 
    discussing a *general* photography issue, but:

> > It is important to get the flash off of the camera. I use one flash
> > (Vivitar 2000) attached to the camera with a 5' pc cord. The other 
> > flashes are all slaved to Fireflies.

     I'm curious about how exposures are determined using multiple
     flashes like this.  Being lazy, I'd want to use automatic 
     flash units as the slaves and depend upon each unit's own 
     automatic metering of what it is flashing at to determine
     the right amount of light.  Of course this would assume limited
     overlapping of light on one subject from more than one
     flash.

     If I were going to do 'light painting', again I'd want to use
     the auto exposure on the flash, rather than manually trying to
     position the flash at a fixed distance from the subject for
     each discharge.

     Is this indeed the technique that is being used by youse cavers?

                                                       Later....BC

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| Bill Costa                                          |
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