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Re: [OM] OT Shutter (language question)

Subject: Re: [OM] OT Shutter (language question)
From: Frank van Lindert <Frank@xxxxxxxxxxxxx>
Date: Sat, 17 Jan 2009 21:21:48 +0100
Michael, I think I understand the origin and change of the meaning of
the word now.

A shutter originally was meant to keep the light out. 
The mechanism resembling the window shutter was built into cameras
(when light sensitive material which made exposure times of less than
say one second possible became available). 
This mechanism borrowed the name, although the new function was to let
light enter instead of keeping it out.

Nice to realize that the shutter time really is the time the shutter
is open...

Frank van Lindert
Utrecht NL

On Sat, 17 Jan 2009 13:11:13 -0500, Michael Collins wrote:

>It seems likely due to the camera shutter being an analogue of a window
>shutter, which is opened and closed to control light entering a room. Now
>the origin of that usage... sorry, I don't have my Shorter Oxford at hand.
>
>Michael
>
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