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Re: [OM] shutter speed

Subject: Re: [OM] shutter speed
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sun, 20 Dec 2009 20:12:34 -0500
Googling 60mm mortar muzzle velocity returns number between 439 and 550 
feet per second.  Let's choose 500 fps for a nice round number.  It 
looks to me like the projectile is about 1 foot out of the tube so it 
started emerging from the tube 1/500 second ago.  So I'll guess 1/1000 
of a second shutter speed which would allow it to traverse half it's 
length during the exposure.

Chuck Norcutt


John Hudson wrote:
> Is there any opinion on the likely shutter speed of this snapshot ?
> 
> http://tinyurl.com/y9or7zs
> 
> jah
> 
> 
> 
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