Tamron or Sigma Wide Angle Lens?

[barfastic]

Ive found a good deal on a brand new (boxed) Tamron di II 10-24 f/3.5-4.5 (about 150 pounds). but i have to decide within an hour or so... (cause he has someone that wants to buy it NOW, but hes holding it down for me)

I originally wanted the Sigma 10-20 f/4 -5.6, but i cant find it in stock anywhere...

Here is what i read from reviews on the Tamron

Conclusion - Pros

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• Equal widest angle in its class, and largest zoom range (by a whisker)
• Low distortion
• Generally good resistance to flare

Conclusion - Cons

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• Soft wide open (low local contrast)
• Soft corners at all focal lengths and apertures
• Wide diameter lens hood takes up lots of space in a bag

and the same website reviews for the sigma.

Conclusion - Pros

​

• Equal widest angle in its class
• Very low chromatic aberration
• Fast and silent HSM autofocus
• Good build quality

Conclusion - Cons

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• Rather inconsistent sharpness (partially due to curvature of field)
• Pronounced, complex distortion at 10mm

Should i wait around and get the sigma? or is the tamron as good?
it seems they both have sharpness issues, Is there anything else you recommend?

My camera is a Sony a350.

Regards,
Michail

 

[MrLogic]

Look here for a short comparison (scroll down to "Alternatives"):

Sigma Lens: Zooms - Sigma 10-20mm f/3.5 EX DC HSM (Tested) - SLRgear.com!


Looks to me like the Sigma 10-20mm f/3.5 could be the best, followed by the Sigma 10-20mm f/4 - 5.6. But that is just one "test," so who knows.

 

[barfastic]

i went with the tamron afterall... i figured 150 pounds isnt too much cash to try out a wide angle lens for the first time... So far, it seems quite fun! off to the wharf tomorrow to try and shoot some things!