Reviews and Problems with Sigma 12-24mm F4.5-5.6 EX DG ASPHERICAL /HSM
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14 May 2007
Excerpt: There's no getting away from the fact that this is a bulky, wide (in the physical sense) lens and weighs in at 600g. As you'd expect from the weight, build quality is robust, and it's a very solid, well-finished lens. It's finished in matt black and sports a HSM motor for reduced AF noise. The zoom ring is at the rear of the lens, while there is a large manual focus ring at the front.