Shel wrote:
> However, it doesn't answer my question.
> These lenses contain the mechanism to operate the auto diaphragm, and
> the camera will still have the mechanism to operate the auto diaphragm
> with K-mount lenses. What I'm trying to get a handle on is just how
> quiet and stealthful a contemporary SLR can be be made to operate,
The quietest SLR I can remember using (during my years of testing dozens of
them for magazines--I've probably at least operated several hundred
different ones) was the original Canon EOS Elan. At least when new, they
were remarkably quiet. (The quietest full-sized _camera_ was the Hexar,
although these got noisier as they aged.)
I'm not sure the preoccupation with the stopdown diaphragm is warranted,
though. On many SLRs you can test this simply by pressing the d.o.f.
preview, and on many SLRs this is not significantly noisy IMO.
The pellicle-mirror EOS RT wasn't terribly quiet, because a hinged plate
with the meter sensor on it slapped down out of the way during exposure from
its resting position behind the beam splitter. It wasn't noisy, but it
wasn't quiet, either.
Quietness wasn't a particularly marketable feature, however, so Canon turned
its attentions elsewhere. I think it's almost amusing that the Canon G1 and
G2 digital cameras included a synthetic "shutter noise" broadcast with a
tiny speaker so users can tell when the picture is being recorded.
--Mike
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