William...

Jack

--- David Savage <[EMAIL PROTECTED]> wrote:

> Something like this?
> 
> <http://www.rit.edu/~andpph/text-calibrating-shutters.html>
> 
> Dave
> 
> On 1/29/06, William Robb <[EMAIL PROTECTED]> wrote:
> >
> > ----- Original Message -----
> > From: "Jack Davis"
> > Subject: Digital Shutter Speed Tester
> >
> >
> > >I freely check the accuracy of shutter speeds with my own tester.
> It
> > > has caused me to send bodies to Pentax for repair a couple times.
> > > Obviously, I must remove the lens and open the back to allow the
> test
> > > beam access to the shutter. How could a DSLR shutter be tested?
> >
> > I used to know how to test shutter speeds using a picture taken of
> a
> > television screen, but I forget how. Something about counting the
> distance
> > between scan lines or some such.
> > Perhaps this will remind someone of how to do it.
> >
> > William Robb
> >
> >
> >
> 
> 


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