Archived posting to the Leica Users Group, 1998/07/16

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Subject: Re: [Leica] ELCAN lenses
From: Paul Chefurka <pchefurk@ca.newbridge.com>
Date: Thu, 16 Jul 1998 12:13:02 -0400

Urban Fredriksson wrote:
> 
> Paul Chefurka <pchefurk@ca.newbridge.co wrote:
> 
> >You'd need a much faster shutter speed travelling at Mach 1 at 300m
> >than you would at Mach 1 at 10,000m.
> 
> Not really: What you do is move the film while exposing, at
> exactly the right rate to compensate (in one installation it
> was at between 5 and 35 cm/s).

Of course!  In hindsight it's a perfectly obvious solution
(isn't everything?)  It's the only way to guarantee zero
image motion relative to the film.  You learn something new
every day on the LUG!

Thanks,
Paul