Re: [photo-3d] Flash Photography help?

[Bill Costa <Bill.Costa@xxxxxxxxxxxxxx>]

From: Bill Costa <Bill.Costa@xxxxxxxxxxxxxx>


    David Motz <david.motz@xxxxxxx> recently posted (in part):

> Can anyone direct me to a FAQ or other source of instruction on using
> flash(es) with my Realist?  ... I have a Vivitar 2800 flash ...
> a Cullman SL28 hotshoe/slave flash to use off camera.  
> My current technique is to set the vivitar to manual and guess at the
> exposure.

    I'm not familiar with the 2800 so I am going to assume that it 
    is an 'automatic' flash for this discussion.  First a quick
    review of flash terminology:

    manual       -- requires use of a guide number and knowning 
    flash           flash-to-subject distance for determining the
                    exposure.

    automatic    -- the flash has its own built-in photo cell for
    flash           automatically controlling the flash exposure.

    dedicated    -- a flash designed for a particular model or 
    flash           series of auto exposure cameras.  The camera
                    interacts with the flash to determine exposure.

    Except for very inexpensive or special purpose flash units, 
    newer units are either automatic or dedicated.  And of course
    either can be used manually.

    Now for your question -- why are you using the flash manually?
    The cool thing about an automatic flash is that it turns your
    manual exposure camera into an automatic exposure camera.  Dial
    in the filmspeed on the flash, pick a power setting, and the 
    flash tells you what aperature to set the camera at.  On a 
    leaf shutter camera on the Realist, the easiest thing to do is
    just pick the fastest shutter speed and shoot away.  Your
    exposures should be correct if the flash is working correctly.

    Now when you start throwing in available light balancing with
    your flash, or using multiple flash units (which you brought
    up with the Cullman) then you really need a book.  Lots of 
    them have been written on the subject.  Sorry I don't have
    any particular recommendations in that category.

       
                                                       Later....BC

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| Bill Costa                                          |
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