Hi, I just read this on Peter Spiro's lens test site,
and it doesn't jive w/ what everyone else says about
the 70-210 lens. What gives?
his site is:
http://webhome.idirect.com/~spirop/pentaxlens.htm
thanks!
"Another interesting question is the quality of zoom lenses compared to
fixed focal length lenses. The results for the few lenses shown here
indicate that zooms, in
some part of their range, could be as good or better than some fixed focal
length lenses. However, the same zoom lens can be fairly good in one part of
its range
(such as the 28-80mm @50mm) and quite poor at another (the same lens @28mm).
It can also be seen that Pentax has made some really poor lenses, such as
the
70-210mm f/4-5.6, whose performance is very weak at the long end of its
range. The performance of a much cheaper Tokina lens is shown for
comparison. The
Tokina is a little bit above average for its class, but just about any
Vivitar, Sigma or Tamron also outperforms this particular Pentax. This
Pentax lens received
similarly low ratings in other magazines also, so the Modern Photography
test is not a fluke."
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