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From: michaelk@azure.UUCP (Michael Kersenbrock)
Newsgroups: net.rec.photo
Subject: Re: fill-in flash
Message-ID: <2543@azure.UUCP>
Date: Sat, 18-Feb-84 11:53:06 EST
Article-I.D.: azure.2543
Posted: Sat Feb 18 11:53:06 1984
Date-Received: Mon, 20-Feb-84 09:12:00 EST
References: <2287@allegra.UUCP>
Organization: Tektronix, Beaverton OR
Lines: 14

I have the Pentax Super-Program and the Pentax '280 dedicated flash.
When you use it in the through-the-lens (TTL) metering mode
(which is the way I normally use it), you can set the lens opening to
whatever you want it, from wide open to fully stopped down.  It is only
in the flash's automatic mode (it is using the flash's light sensor) that
the lens opening is fixed.  This also means that you can put the flash on
an extension (or swivel the head up/down/left/right) to use as fill because
it's light sensor is not being used in TTL mode.  I don't understand the
advantage of using anything other than TTL mode, the pentax manual doesn't
seem to be too clear on this.

Mike Kersenbrock
Tektronix Microcomputer Development Products
Aloha, Oregon