Imaging Resource PMA 2009 - Sigma Lenses

[manochapchap]

Tamron 18-270mm

Tamron 28-300mm

Sigma 18-250mm

Nikon 18-200

Which lens is better?

[rafael145pl]

Tamron suck Sigma and Nikkor are both good

[prmass1]

I seen reviews on the 24-70mm hsm that say the corners are too soft wide open aperture and they got pictures to show it. The canon and even the tamron cheaper of all had sharper corners wide open. In here they say toward the end of the video that the lens is sharper than the manufacturer camera lenses. Who is to believe?

[Featinwe]

It's "wierd" it's a s normal as any other ;-) 2.8 could be simply too big - lens would cost much much more - it's 0,5 Ev...

[metalfox360]

I hope they start paying more attention to quality control rather than making more new and way too expensive lenses. I don'y get it why didn't they make the 10-22 2.8! 3.5? weird aperture in my opinion