The obvious problem (I'm not the first to think of this) is that you
fire the shutter A LOT MORE with a DSLR than an SLR.   If the camera
wears out based on shutter firings, then 50,000 is not that big given
how many pics folks are taking.


Steven Desjardins
Department of Chemistry
Washington and Lee University
Lexington, VA 24450
(540) 458-8873
FAX: (540) 458-8878
[EMAIL PROTECTED]

>>> [EMAIL PROTECTED] 03/18/05 1:53 PM >>>
That site refers to the number of cycles "before the
electronics and mechanisms...wear out beyond repair." 
I don't think that is correct.  The reliability of
devices such as cameras is usually scored as "mean
time between failures" (MTBF), without regard for
whether or not the failure is repairable.

IIRC, most "amateur" and "prosumer" cameras have
mechanisms rated at 50,000 cycles MTBF; the F-series
Nikons have been rated 150,000 cycles since at least
the F3 (maybe before), and the Canon EOS-1 was 100,000
cycles (though the 1N went to 150,000).

FWIW anecdotally, my PZ-1 just had its film winding
mechanism replaced; it broke after 11 years at 50
rolls/year = ~20,000 cycles.  It shouldn't have done
that.

Rick

--- Cotty <[EMAIL PROTECTED]> wrote:
> FWIW, the EOS 1D is rated at 150,000 shutter cycles.
> The 1Dm2 and 1Dsm2
> are rated at 200,000. EOS-3 was rated at 100,000.
> 
> BTW, some interesting reading on camera longevity
> (inc Pentax) here:
> 
>
<http://www.mir.com.my/rb/photography/fototech/help/howlong.html>
> 
> 
> 
> Cheers,
>   Cotty
> 
> 
> ___/\__
> ||   (O)   |     People, Places, Pastiche
> ||=====|    http://www.cottysnaps.com 
> _____________________________
> 
> 
> 

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