Lenstip.com har anmeldt Sigma 18-200 mm f/3.5-6.3 DC OSm, et meget alsidigt zoom objektiv fra Sigma, der ydermere er udstyret med billedstabilisering.
Lenstip.com skriver bl.a.:
At the beginning of 2007 Sigma announced the launch of a new 18-200 mm zoom lens with the f/3.5-6.3 changeable aperture and, what’s important, with optical image stabilization.
The decision, although in a way expected, was also risky up to a point. 18-200 mm class superzooms belong to a typically amateur equipment class. Who might be interested in them? Certainly not the users of Sony and Pentax reflex cameras (although the lens is available with that mount too) because they benefit from image stabilization in-built so they see no point in paying big amount of money for a stabilized lens. For the Four Thirds system users the Sigma at 18 mm doesn’t give an angle sufficiently wide for a universal zoom. It leaves the users of Canons and Nikons as a potential target group. The problem is that the latter have a Nikkor 18-200 mm VR f/3.5-5.6, much-praised in many reviews. If the Sigma wants to compete successfully with that device it must be as optically good as the Nikkor and cheaper in the same time; after all it lacks a silent SWM motor for a start and is a bit slower at the longer end (recently, however, a piece of information has appeared on the Japanese Sigma site announcing without much publicity the launch of an HSM version prepared specially for Nikon cameras, undoubtedly making the cooperation with D40/D40x possible). We were even more surprised when in February 2007 Sigma announced that the lens’s suggested price on our market will amount to as much as 2490 PLN so just slightly less than the Nikkor’s.