Pentax makes a DA* 200/2.8. That's quite fast for a lens of that
length, and anything faster is going to be very large and very heavy.
And very expensive.
Paul
On Jul 26, 2009, at 5:17 PM, Graydon wrote:
On Sun, Jul 26, 2009 at 05:03:36PM -0400, Adam Maas scripsit:
On Sun, Jul 26, 2009 at 3:49 PM, Graydon<[email protected]> wrote:
[snip]
And, yes, perhaps I should stop trying to take pictures of
wretchedly
crepuscular songbirds. Or inside zoo buildings on cloudy days. Or
under forest canopies. Or at the other end of long rooms inside.
Or
of specific members of the orchestra after the house lights have
dimmed.
But, well, I've been known to try all of those, and a sharp-wide-
open
fast medium tele -- what I suspect Pentax thinks of as a long tele
--
would be really useful.
Is AF a requirement?
Nice, but not necessary.
If not I can think of 7 different current-production lenses that fit
your requirements. of course none are Pentax's. All are KA mount.
Well, one of the requirements is _length_ -- 100 to 200 mm.
[snip]
Makro-Planar 100mm f2
[snip]
The Zeiss 35mm f2 and 100mm f2 are arguably the finest lenses ever
sold at those focal length/aperture combinations.
Which is why the ZK 100/2 is on the list right after the 60-250.
Oddly enough, it doesn't look like anyone makes a really sharp 200/2
in
KA mount.
-- Graydon
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