Sigma 17-50mm f/2.8 EX DC OS HSM standard zoom lens
When it comes to DSLR image quality, pretty much all of us have heard the old truism about the quality of the lens being more important than the price of the camera. In this respect it pays to get off to the best possible start when buying your first DSLR, or when taking your first steps towards...
Constant aperture of f/2.8; Smooth zooming action; Delivers excellent results
Manual focus ring is fiddly; All-plastic outer construction; Resolution tails off above f/11