It's almost certainly going to be closer to a poisson distribution than a straightforward normal distribution.
That means there are going to be some early failures; you aren't going to be error-free for any number of cycles. Somebody, somewhere, quite possibly may have had a shutter fail at 1,000 cycles. On the other hand, some assemblies may manage 250,000 Rick Womer mused: > > Yes, I know. The point was to illustrate that the > standard deviation around that mean is probably rather > wide. > > Rick > > --- John Francis <[EMAIL PROTECTED]> wrote: > > Rick Womer mused: > > > > > > 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. > > > > That's MEAN time between failures, not MINIMUM time. > > > > You were unlucky, but somebody is going to be ... > > > > > > > > __________________________________ > Do you Yahoo!? > Make Yahoo! your home page > http://www.yahoo.com/r/hs >
