On Fri, 7 Jun 2002, Russell Baker wrote:
> I was just figuring on using the 283
> on Auto for quick and easy fill flash.
> Since I can't "fool" the flash by
> changing the ISO setting it does
> make things "interesting.
> (ie:more complicated/time consuming)
Sure, you can "fool" the flash in Auto mode. Let's
say you're using ISO 100, and you are shooting an
18% gray subject (wahahaahaha), and you have calibrated
the real output of that particular 283.
You wish to let's say, have the flash exposure at -1.3 stops.
The 'blue' setting on the sensor yields f/8 at a maximum of
15 feet (bring the Quantum). You merely set the aperture at
f/12.5. Done.
In real life, the auto sensor is constantly fooled by objects
of varying reflectance, and most importantly, backgrounds of
varying brightness, thus changing your fill ratios without
your knowledge --- and laying the groundwork for some nasty
surprises... If you want brain-dead, generic fill-flash (and you
would be amazed at how many of today's busiest working pros know
absolutely nothing about how to do this manually), get a
Canon EX-series camera & flash, or Nikon D and later series
body and lens (and read the entire manual !) and foggedabout it...
--- Luis
