"Alexandre A. P. Suaide" wrote:
> ...
> what do you think about the Sigma 28-105 F2.8-4???? I am thinking
> to buy this lens to replace my pentax FA 28-70 F4. In the 28-70 range,
> is the sigma as good as/better/worse than pentax?
> ...
Far worse. That's why you can find so many of those on the used market.
Stay with the lens you already have or be prepared to spend significant
money for f/2.8 semipro zooms. The cheaper Sigma 4-5.6 is said to be
much better.
Alternatively wait for the 24-90, it might be a very interesting lens
and not too expensive.
There's also a Sigma 28-135 but I don't know anything about it.
You can have a look at:
http://space.tin.it/arte/flamin/28-105.html
where I tried pulling together some info on various lenses on this range
but
never got around to complete the work. It might help you some, anyway.
Ciao, Flavio
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