> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of James Lewis
> Sent: Sunday, November 12, 2000 6:21 AM
> To: [EMAIL PROTECTED]
> Subject: Black reflectors [WAS] EOS ST-E2....
>
>
>
> >
> > A black reflector, also known as a negative reflector, does exactly the
> > opposite of what a white reflector does.
>
> who came up with this term? it make no phyical sense.
>
> so does that mean one could have a white absorber? also known as
> a postitve
> absorber....
I've never heard anyone actually refer to it as a "black reflector". The
more common usage, at least in my experience, is "negative reflector". It
may not make much sense in a physical sense, but as a practical matter it is
actually a pretty descriptive term. Where one would use a reflector to add
ambient fill to the dark side of a subject, one uses a negative reflector to
remove ambient fill.
I think the term was probably invented as a means of illustrating this type
of usage. The more correct term is "flag"; a flag is a black panel used to
"flag off" light, keeping it from reaching a particular part of the scene
being shot. The usage of a flag as a negative reflector is one particular
application of a flag.
Chuck Skinner
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