Sigma 18-35mm F1.8 DC HSM A Canon

Sigma 18-35mm F1.8 DC HSM A Canon mount lens review: fixed focal length quality in a zoom?

Introduction As with the 35mm prime, this new model is one of the firm’s new Art series lenses challenging Canon’s L-series and the similar ED lenses from Nikon for optical quality.At first blush it could be mistaken for a full-frame lens but it is in fact designed for APS-C format DSLRs and has the equivalent angle of view of a 29-56mm zoom on a Canon EOS 700D or similar body.It stands out for its constant f/1.8 maximum aperture, which is the fastest zoom made for DSLRs currently (that accolade previously went to Olympus for their phenomenal