March 3rd, 2009 by 
aquadog
Sigma announced the new compact high-performance telephoto zoom lens, the Sigma 50-200mm f/4-5.6 DC OS HSM.
The lens features Sigma’s own Optical Stabilizer function, SLD (Special Low Dispersion) glass, HSM (Hyper-Sonic Motor), OS (Optical Stabilizer) function, and Super Multi-Layer Coating to reduce flare and ghosting. The 50-200mm f/4-5.6 DC OS HSM lens has a minimum focusing distance of 43.3inches (110cm) throughout the entire zoom range and a maximum magnification ratio of 1:4.5.
Sigma 50-200mm f/4-5.6 DC OS HSM Press Release
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