--- Tom Pfeiffer <[EMAIL PROTECTED]> wrote:
> There are plenty of alternatives
> from Canon and other
> makers that are.
There is no alternative from Canon for true wide angle
coverage on a 20D. Not the 17-40, not the 16-35. Not
even the 14mm, really.
3rd party vendors? Sort of. The Sigma 12-24 comes
close in focal length range, and maybe performance, if
you get a good one. But it's a big heavy best, and
that front element seems destined for abuse. The new
Tokina seems to be a pretty weak performer, based on
the very few pictures I've seen. I'm not aware of any
others.
A 10mm rectilinear lens with an image circle large
enough for a 35mm frame is going to be very tough, and
very expensive, to make. Right now I dont' see any
alternatives to Canon's 10-22 for a true wide angle
shooter with a 20D.
> In 5 years time, the EF-S lenses
> will be novelties like the
> AF lenses Canon made for it's T90 body. So why waste
> money on them?
OTOH, as sensor performance continues to improve,
perhaps it will be FF sensors that become novelties.
Nikon seems to have made that decision. The 1DsMkII
lready outperfoms MF film systems. It may only be a
few years before an APS-C sensor can reach that level
of performance. At the point, do we really need FF
SLRs, or will the manufacturers migrate to smaller,
lighter, less expensive bodies and lenses, and
relegate FF to a niche market.
Don't say "never." That's the reaction most
photographers had when Ernst Lietz introduced the
"minature" camera way back when.
=====
Bob Meyer
I don't suffer from insanity... I enjoy every minute of it.
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