--- Karen Nakamura <[EMAIL PROTECTED]> wrote:
> >True in general, but under the conditions the
> original
> >poster and I have given (small aperture, polarizer,
> no
> >tripod, 'slow' film, landscape pictures) you are
> VERY
> >likely to benefit from IS. For instance on a SUNNY
> day
> >with ISO 100 ('slow' film), aperture of 16 (with
> >landscape you often want big DOF), and a polarizer
> you
> >end up with a shutter speed of 1/100*4=1/25sec.
> Even
> >at the short end of the lens this is to slow to get
> >the max. out of the lens. If you use even slower
> film
> >or if it is not sunny it becomes even worse. So
> IMHO
> >there is a NEED for IS under the given conditions.
>
>
> True, but if you're taking landscapes without a
> tripod, well..... to be
> blunt, you're an idiot.
Well, first of all I said that *I* always use a
tripod. But there are lots of people who don't want or
even can't bring a tripod. The original poster seems
to have only one camera body and maybe one or two
lenses. Adding a tripod at least doubles the weight
and size of your equipment. If you go for a light
tripod then you pay more for the tripod then the
camera equipment. Plus IS is a good way to get around
a tripod and in most cases still get more then
acceptable quality for amateurs and even some
professional requirements.
Finally, your words sound really RUDE!
> Also, most landscapes are taken with relatively
> short focal lengths, thus
> reducing the need and effect of IS.
>
> For good landscapes:
> * Good prime
That means you probably need at least 4 lenses which
adds weight, cost, space, etc.
> * Short focal length
Landscapte does not necessary need short focal
lengths.
> * Small aperture, diffraction limited
That's where the IS comes in.
> * Less glass (== no IS) == better
So how come all the optical performance of the new
300/2.8IS, 400/2.8IS etc is at least as good as the
older version. I have not heard anything that these
new IS lenses have less resolution, contrast or flare
problems.
> * Bigger negative (medium/large format) == better
Read what the original poster asked for and you know
that this is no option for him.
> * Tripod is a necessity
See above.
In general you are writting a message that really has
nothing to do with what the original poster wanted to
know.
Robert
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