On Mar 13, 2011, at 9:51 PM, John Francis wrote:
> 
> It's noisier on a DSLR for several reasons.  For one thing,
> everything happens fast - much faster than in those older all-
> mechanical bodies, with a fastest shutter speed of 1/1000s.
> The faster you operate any machine, the noisier it usually is.
> Plus the re-arming happens as part of the exposure; you don't
> have the option of splitting exposure and re-cocking into two
> separate parts, and doing the second part slowly and quietly.
> And, finally, not only does everything happen fast - you've
> also got extra noise from the electric motors doing the work.

All of which makes the K-5, which is nearly silent, an outstanding technical 
achievement.
Paul


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