"David A. Mann" <[EMAIL PROTECTED]> wrote:
> Alan Chan writes:
> > Few years back, I read in a UK magazine which rated the Nikkor
and
> > Contax(Zeiss) had the best sharpness while the Pentax was not so
hot
> > (vignetting and sharpness were problems until f8). The only
thing great
> > about the Pentax was flare control (as well as the Zeiss). The
Nikkor had
> > flare problem.
> I can confirm that the Pentax 15mm is not terribly sharp
wide-open. I
> remember that the sharpness increased and light falloff reduced
dramatically
> at f/5.6 and by f/8 they weren't a problem. This lens holds a lot
of detail
> when stopped down, especially at high contrast due to SMC. My PUG
pics
> for Oct 2000 and Jan 2001 were shot with this lens.
>
> I sometimes wish that it had at least 6 aperture blades, and a
slightly
> deeper hood. And a more sensible choice of built-in filters
(grumble). F/2.8
> and internal focussing would be nice, too (15mm limited, anyone?:)
Ok I'll bite. Why do you need f/2.8 on 15 mm lens? I don't think I
ever used it at wider than f/8. As far as hoods are concerned on 15
mm lenses, they are pretty symbolic. At best, all they do is offer
some minimal protection for the front element.
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