Very good value / price ratio if you want to avoid weak zooms sold with high value bodies.

Useful range; Lightweight; Aberrations are not bothersome; Very sharp on the centre; Ideal for travelling

A bit soft on the edge at wide angle; So It is needed to close the diaph at at least 5.6 or raise the focal a little bit

The 17-70mm focal range is also close to what's possible before a swag of optical performance compromises come into play in order to enable a longer zooming ratio. Consequently, the Sigma is a strong performer across its entire focal range with excellent uniformity of sharpness and brightness.

I've had the lens now for 1 week and I've put it thru some basic macro and non-macro shots in both low-light, ambient light and sunlight conditions. The lens has performed exceptional in all instances. Paired with my new Canon T4i camera I am getting amazing images in my opinion.

Outstanding macro; sharp images; excellent OS

zoom rotation is backwards from the other Sigma lenses I've used

Far better than the kit lenses! Very nice bokeh for close ups of flowers and the like, and excellent for portraits. Very slightly soft at the corners at 70mm, but this isn't a biggie.

thanks to snapdeal delivered a day before the committed date package was good but invoice was missing in the package got few cool pics with this lens i am sure i wont mount the kit lens unless i need some crazy stuff sharpness is good all over the image but a big problem with chromatic aberration...

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