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From: mauney@ncsu.UUCP
Newsgroups: net.rec.photo
Subject: Re: 2 Questions for you Photobuffs
Message-ID: <2214@ncsu.UUCP>
Date: Wed, 22-Jun-83 14:25:57 EDT
Article-I.D.: ncsu.2214
Posted: Wed Jun 22 14:25:57 1983
Date-Received: Thu, 23-Jun-83 22:23:02 EDT
Lines: 25

References: rocheste.2020

Dedicated Flash:
   Dedicated means that the flash interfaces with some fancy feature(s)
on the camera.  They are all incompatible, but clever vendors have
come up with interchangeable feet, so that their flash can be dedicated
to any popular camera.  In most cases, a dedicated flash will set the shutter
to the correct synch speed, and light an indicator in the viewfinder
whenever the flash is ready.  In some of the more expensive cameras,
you can also get through-the-lens flash metering.  The camera measures
the light reflected from the first shutter curtain and the film,
and shuts off the flash when the exposure is correct.
   An intelligent salesperson would have asked what kind of camera
you have BEFORE trying to sell you a dedicated flash.

Shutter cocking:
   Some people claim that leaving the shutter cocked for long periods
is bad, presumably causing fatigue to the springs.  However,
Modern Photography surveyed their staff, and couldn't find any additional
mechanical problems for those who kept their shutters cocked, compared
to those who didn't.  For anecdotal evidence,  I have had an inexpensive
Ricoh for five years, always keep the shutter cocked, and have had
no trouble (except for very infrequent accidental exposure).

			      Jon Mauney