On Wed, 17 Aug 2005 22:31:54 +0200, Glen <[EMAIL PROTECTED]> wrote:
At 03:44 PM 8/17/2005, Kostas Kavoussanakis wrote:
16-45, 20-35 and the FAs,* from memory are in that list. I still see no
answer as to the problem with variable aperture lenses.
<snip>
Also, the constant-maximum-aperture zooms tend to be better quality
lenses,
from what I've seen. This may or may not be because of any technical
reason
related to their constant maximum aperture, but it sure seems to be the
trend.
Not supported by any knowledge of lens production, but I don't think
there's a technical reason:
Constant aperture zooms are always fast(ish), at least at one end. This
means they won't be cheap. Furthermore, I think that customers who care
about a constant aperture certainly care for optical performance or build
quality. That would mean there simply isn't a market for a bad (but
expensive) constant aperture zoom.
--
Regards, Lucas
