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But accoding the same same Dpreview Revew, the tamron is NOT RECOMMENDED due to the highly irregular mis-focusing. I have used this lens, and I agree that AF is unreliable. Making it worst is the lack of focusing limiter. Often, when the lens failed to find focus, it rewind all the way back to 70mm and grind all the way back to 200mm, yet still failed to find AF. Had tamron add a focus limiter, it can cut this focus hunt in half. The price is good, but tarmon shouldn't have skip out on the USM/HSM motor and a focus limitor.According to DPReview, the Tamron 70-200 2.8 is actually sharper than
the Canon, especially at f/2.8 and 200mm. But the Canon has the
advantage of faster focusing and the option of buying an
image-stabilized version. The Tamron however, is much less expensive.
http://www.slrgear.com/reviews/zproducts/canon70-200f4is/tloader.htmCanon 70-200 F4 IS
http://www.slrgear.com/reviews/zproducts/tamron70-200f28macro/tloader.htmTamron 70-200 F/2.8
70-200 is one of the most popular lens length's and almost all brands have excellent offers in the same range like the SONY 70-200.I heard some stated that the EF 70-200mm lenses from Canon beat
everything that all the other DSLR brands has to offer in both IQ and
price in this range. Is this right?
I've never experienced this with any lens before. Why would the the focusing change the focal length of the lens? Did you have to change it back to the focal length you were trying to originally shoot at after it failed to focus?Often, when the lens failed to find focus,
it rewind all the way back to 70mm and grind all the way back to
200mm, yet still failed to find AF.
Yeah, my 70-200 F/4 IS is great. I love it. However, the title of "best" in terms of optical quality in this focal range goes to the Leica R zooms, the 70-180mm F/2.8 APO and and 80-200mm F/4.70-200 is one of the most popular lens length's and almost all brandsI heard some stated that the EF 70-200mm lenses from Canon beat
everything that all the other DSLR brands has to offer in both IQ and
price in this range. Is this right?
have excellent offers in the same range like the SONY 70-200.
Canon is special because it has a very wide offering of 70-200. SONY
has only one (a 2.8). Canon has four different models 2.8 or 4, IS or
non-IS. Especially the 4 IS stands out as one of the best zooms ever
made.
70-200 f/4 IS L has great sharpness, but its bokeh is nothing to
write home aboutl, it's ok, but not in the same league of 135 f/2 L
or 70-200 f/2.8 L, 200 2.8L, 200 f2 IS L, 300 2.8 IS L.
I trust this is a bad joke. The bokeh character of the 70-200 f/4L leaves nothing to be desired - most people consider it excellent. I suggest you provide an example of what you consider "bad bokeh" as I doubt it compares to the preferences of the majority of shooters..70-200 f/4 IS L has great sharpness, but its bokeh is nothing to
write home aboutl, it's ok, but not in the same league of 135 f/2 L
or 70-200 f/2.8 L, 200 2.8L, 200 f2 IS L, 300 2.8 IS L.
but considering that the 70-200 is so often used as an action photography lens the terrible AF kind of rules it out in a large percentage of cases....According to DPReview, the Tamron 70-200 2.8 is actually sharper than
the Canon, especially at f/2.8 and 200mm. But the Canon has the
advantage of faster focusing and the option of buying an
image-stabilized version. The Tamron however, is much less expensive.
The four Canon 70-200L lenses are the only Canon zooms with
essentially flawless optics with performance on par with good prime
lenses. I imagine that you can find similar good 70-200 zooms from
other manufacturers. But probably not zooms with other focal lenght
ranges.
The Niikon 70-200 is quite a bit better than the Canon when used on a
crop camera but suffers from very soft edges when used on a full
frame camera. I don´t know the performance details of other
manuafcturers 70-200 zooms.
Yes, sad that many do not seem to have a clue about the difference between bokeh & DOF and their different effects on the resulting picture.It's not that the Bokeh is bad on the 70-200 f/4L IS. It's just that
the background is not out of focus enough to really isolate the
subject,
I didn't describe as well as I should. Both Tamron and Canon 70-200 F4 IS are FIXED Focal lengthed zoom lens, this means their physical demension doesn't change as you zoom from 70mm to 200mm (as it does in typical superzoom that is short and grows long in telephotos). Rather, both lens MOVE the "internal elements" to deliver the 70mm through 200mm focal length you desired.I've never experienced this with any lens before. Why would the theOften, when the lens failed to find focus,
it rewind all the way back to 70mm and grind all the way back to
200mm, yet still failed to find AF.
focusing change the focal length of the lens?