Sigma 18-200mm f3.5-6.3 DC OS Pro Reviews

I have to admit, I'm not normally a fan of high zoom ratio lenses due to the compromises involved. Saying that, this lens is a decent performer for this kind of lens and should please many users looking for convenience for travel or casual photography. The optical stabiliser also works really well and adds to the value of the lens. At £290 it doesn't cost a fortune, making the lens a pretty good value choice.

The Sigma 18-200mm f/3.5-6.3 DC OS HSM is the latest in the company's long line of superzooms, which stretches back to the early 1990s and a series of 28-200mm (and later 28-300mm) lenses for 35mm SLRs. In fact Sigma was the first company to produce a superzoom for the burgeoning budget DSLR market, with its 18-125mm D3.5-5.6 DC of August 2004, followed shortly after by an 18-200mm F3.5-6.3 DC in February 2005. However the big problem with long, slow zooms is image blur due to camera shake, and in March 2007 Sigma duly announced this new version of the 18-200mm with the addition of 'Optical Stabilization' (OS) technology for Canon, Nikon and its own SD range of DSLRs (Sony and Pentax users, of course, benefit from sensor-shift image stabilization of all lenses)...