Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!linus!wivax!decvax!microsof!fluke!pwv
From: pwv@fluke.UUCP
Newsgroups: net.rec.photo
Subject: Re: Leaving the shutter cocked
Message-ID: <341@vax1.UUCP>
Date: Fri, 24-Jun-83 09:28:11 EDT
Article-I.D.: vax1.341
Posted: Fri Jun 24 09:28:11 1983
Date-Received: Sun, 26-Jun-83 07:20:10 EDT
Lines: 17

About leaving the shutter of a camera cocked:

    As I understand metals and fatigue, leaving a spring under tension
    (assuming that it has not been stressed beyond its elastic point)
    *does not* cause the metal to fatigue.  Only repeated movement
    (flexing, vibration, stretching, etc.) of metal will cause it to fatigue
    and break.  Therefore, leaving the shutter cocked on a camera should 
    have almost no ill affect on the shutter reliability.

Any mechanical engineers out there care to refute this (il)logic?

					Pat Vilbrandt
					John Fluke Mfg. Co., Inc.
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