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PostPosted: Thu Jan 08, 2009 9:09 am 
I have to look on the 2.8 zoom lens firstly my main choice is the Sigma 24 70 f/2.8 HSM ( The new one ) but if the price way too expensive. My second option would be the Tamron 17 50 f/2.8.

Here is my questions, Does this lens when auto focussing is very noisy or silent. Is it reliable that taken good picture at low light & lastly since it is 2.8 does it have creamy looking Bokeh for the Portrait shot. :?:

Thanks in advanced for helping me out. :wink:


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PostPosted: Thu Jan 08, 2009 5:16 pm 
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Location: Germany
Here's a review that I would trust.
It's not the version with built in AF-motor (it's not really a HSM version) but one can assume, that the optical quality is identical.

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Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews, My Pictures, My Photography Blog
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PostPosted: Thu Jan 08, 2009 5:32 pm 
Hi Adi, I have this lens for a while and I don't like it.

Here is my impression of the lens

I like Canon EF 28-135mm IS better for low light.

Maybe the Sigma one is better (I know they have good built, quiet & fast focus)
I own 2 Sigma EX lenses and satisfied with it mechanically and optically.


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PostPosted: Fri Jan 09, 2009 4:46 am 
Tamron 17 50 f/2.8 is a popular choice but been spoilt by the the optical quality. Sorry to hear that Enche Zein, you have a bad copy of your previous Tamron 17 50.

I think better to get the Sigma 24 70 HSM although it is pricy but I don't think I will get the Canon EF 17 55 f/2.8 IS USM it too expensive & out of my budget range sure it is a breath taking lens. Is that true this lens is a hidden L ? :?


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PostPosted: Fri Jan 09, 2009 3:39 pm 
it is not only hidden L, it surpassed the quality some L lenses plus IS for standard zoom that even 24-70mm L does not provide.

Why it is not labelled L in my opinion is because of the build quality (exterior case) and also it is EF-S lens which can't be use in full frame camera. None of EF-S lenses currently are labeled L.

Check out this thread:
http://www.cameralabs.com/forum/viewtop ... highlight=

exactly what i got. It is far from sharp in my opinion.

It might be Auto Focus failure too, Tamron has been reputable on having clumsy AF that hunt for target most of the time.


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PostPosted: Tue Jan 27, 2009 4:04 am 
I got the Tamron 17-50 the other day. Have been playing with it over the weekend quite a bit.

While I initially got this lens to do concert photography, I seriously don't think that the autofocus would be up to it for me. It's just not fast enough and hunts quite a bit (unlike my 50mm 1.8 which has pretty impressive autofocus on moving subjects in relatively low light).

I am actually impressed with this lens though. Nice and sharp. The autofocus is a little noisy but that doesn't really phase me. You can get nice and close to subjects too which actually surprised me. Granted that this image was cropped a bit...

Shot at 50mm f/2.8

Image


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PostPosted: Tue Jan 27, 2009 4:21 am 
Hi Thanks for the image sample. It may look sharp but I think I should invest a flashgun first. But I'm still in research to look on the standard zoom lens ( I want to upgrade from kit lens ).


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