----- Original Message ----- 
From: "mike wilson"
Subject: Re: *ist D and Flash



> > > Can you not use _any_ "shutter" speed? Or does it actually have an fp
> > > shutter?

> >
> > It has a cute little focal plane shutter.
>
> What a bummer!  I thought that the "shutter" would be entirely
> electronic, removing the potential for failure of a (at least partly)
> mechanical device.  What do digicams use?
>

It keeps dust off the sensor during lens changes.
I expect point and shoots use non shutters, but their response times are
pretty abysmal, partially, I expect, due to how they have to desensitize
then resensitize the sensor.

William Robb

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