At 12:13 PM 12/5/01 -0500, you wrote:
>Try fixed aperture ones from Sigma, Tamron, and Tokina. All make some good
>lenses with fixed F2.8 or F4 apertures.
>Kent Gittings
>

I can only find the Sigma 24-70/f2.8, 28-70/f2.8 and a 28-70/f2.8 DF and
Tokina 28-80/f2.8 (and the older 28-70/f2.6-2.8 which is close enough to a
fixed aperture for most occasions)

Tamron's 28-105/f2.8 doesn't seem to be available in Pentax mount.

The only f4 zoom is the Pentax 28-70/f4.
Nobody else seems to make a constant aperture AF zoom (for Pentax mount, in
the 28-80mm range - there is the recently mentioned Sigma 100-300/f4, and
the 80-200/f2.8's but I don't think that those will work too well in a
studio :-)

So the available zooms look like:

Mfg.    Lens                    Approx. Price (USD)
Pentax  28-70/f4                $150
Sigma   28-70/f2.8 EX           $280
Tokina  28-70/f2.6-2.8          $370
Sigma   28-70/f2.8 EX DF        $380
Sigma   24-70/f2.8 EX DF        $380

Tokina  28-80/f2.8              $600
Pentax  28-70/f2.8              $980

Any others?

--Mike Nosal
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