From: holpica (tgoode5_at_antispamdomain.not)
Date: Fri Nov 28 2003 - 23:28:20 EST
FWIW the quality of the 15-55mm lens included with the drebel is very
poor. It produces a lot of CA and is extremely soft.
--- In digital_astro_.at._yahoogroups.com, Sue Sarlette and Gerald Pearson
<suegerry_.at._m...> wrote:
> > Date: Fri, 28 Nov 2003 17:58:47 -0000
> > From: "Roberto Pipitone" <robi40it_.at._y...>
> > Subject: why Reflex?
> <...>
> > Is there any particular reason for not to produce interchangeable
> > lens cameras, featuring high overall performance as, say, the
10D,
> > but without reflex system, thus avoiding complication/costs of
> > mechanichal moving mirror, pentaprism, etc., and also mechanical
wear
> > (I read from another forum, a typical life of 50000 shots to be
> > expected for mirror movement, not the infinity!!)
> <...>
>
> I've wondered a bit about that same question myself. I expect that
> it'll come in time, but not until at least a few years from now.
>
> I would speculate that camera manufacturers hesitate to introduce
such a
> beast because they perceive (probably correctly) that such a design
> would not sell very well at the present time. Nearly anyone
willing to
> spring for the money to buy a DSLR would probably have some film
DSLR
> background, and might therefore be somewhat gun shy about buying
> anything which did not have a familiar conventional through-the-
lens
> viewer. Professional photographers (and very advanced amateurs)
tend to
> be very conservative and skeptical about new innovations. Over the
> years, I've noticed that amateur photographers were routinely using
> automatic exposure control, zoom lenses, and autofocus lenses
several
> years before these things caught on with the professional
photographers.
>
> ALONG SOMEWHAT SIMILAR LINES,
> it would seem logical to make high quality removable lenses
optimized
> to cover an image size smaller than the venerable old 24x36 mm
standard
> of the last half century. For the same aperture and focal length,
it
> ought to be possible to produce a cheaper and lighter weight lens
if the
> lens only has to produce a good image over a smaller area --
perhaps
> lenses optimized for the smaller image size of a Canon 10D, digital
> Rebel, etc. Currently, the only such lens is the one which is
bundled
> with the Canon digital Rebel kit.
>
> -- Gerry
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