Sigma has announced the APO Macro 150mm f/2.8 EX DG OS HSM telephoto lens. This lens features Sigma’s Optical Stabilizer, a weather-resistant design, three SLD (Special Low Dispersion) glass elements, a floating focusing system, Super Multi-Layer Coating, HSM (Hyper Sonic Motor), and a rounded 9 blade diaphragm.
Sigma APO Macro 150mm f/2.8 EX DG OS HSM Lens Press Release
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