As for the 28-135IS lens -- it's a decent lens for the money, but
not the best for low-light due to the 5.6 max aperture at the tele
end. Tends to force you into slower shutter speeds which can be
compensated for by the IS, but a 28-70L f/2.8 is a much better lens
under such circumstances.
I guess it really depends on your expectations, and those are the
most subjective of things. Having a couple "L" lenses sets my
expectations much higher than perhaps someone just starting out and
without a huge lens budget. I will say I was pretty happy with my
28-135IS for many things for the year or so before I started
looking at the L's. Is it as sharp as the 50 f/1.8 -- no way. the
50 kills it.
As for IS -- it's nice, but IMHO not a huge deal at that focal
length. Best way to look at IS is to figure it allows you to
handhold the lens at a shutter speed a couple stops slower than the
old rule-of-thumb of 1/focal-length would dictate. So IMHO it's
not as big a deal on the 28-135 as it would be on a 100-400 lens.
Best bet is find a good local dealer and check out the lens there.
Take your camera and shoot a few frames, then go home and check 'em
out. See if the lens looks like it might do the trick. Then if it
does, go back and buy it with the understanding from the dealer
that you still need to evaluate the lens a bit more.
-- Lew
Especially the hyperzooms like the 28-300. In order to fit 10x
zoom into one lens and have it remain carriable, there are lots of
compromises which have to be made and one of them is often image
sharpness.
The 28-135 is an okay lens for the money but can suffer from issues
of contrast and softness at the extremes. But I found mind lacking
a little in sharpness even on my D30 and that drove me into L-glass
fever.
Not familiar with the Canon 28-200, sorry.
Consider getting a 50mm f/1.8 or f/1.4 Canon lens and see how you
do. The f/1.8 is a real sharp lens for the $70 pricetag.
-- Lew
I have the Canon 1.8 for low light situations and I am pleased with the sharpness of this lens. What is your opinion of the IS.
After glowing reviews from Calumet Photographic in Chicago and my
long time dealer here in Indiana, I purchased the Tamron 28-300 XR
zoom for my new 10D. I am experiencing erratic focus with some
shots very sharp and some not very sharp at all. This may be the 7
point focusing system choosing the wrong target and I have just
begun experimenting with center focus point only. Too soon for
results. My goal is extreme sharpness within a reasonable budget
and I am considering returning the Tamron for a Canon 28-135 IS USM
or 28-200 USM. Can I get some experienced input on these lenses
please.
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Any DSLR beats unexposed film.
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Any DSLR beats unexposed film.