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The Sigma 50mm F1.4 DG HSM Art is a pro-level performer for full-frame DSLRs and is ideal for many types of videography and photography including portraits landscapes studio work and still-life. It has been redesigned and re-engineered with SLD glass and has been optimized for rich peripheral brightness with improved large aperture performance by positioning wide elements into the front groups. Other updates to this lens include an optimized autofocus algorithm for smoother focusing and a floating focusing system to reduce lens movement while focusing. It has 13 elements in eight groups compared to the previous eight elements in six groups and it also has improved close focusing at 15.7 inches and a maximum magnification ratio of 1:5.6. The 50mm F1.4 incorporates Sigma’s Hyper Sonic Motor HSM system to produce quiet high-speed auto focus. In addition it includes Super Multi-Layer Coating to reduce flare and ghosting and to ensure the highest-quality images. USB Dock Compatibility Sigma has developed special software SIGMA Optimization Pro that can update the lens firmware and adjust parameters such as focus. USB Dock is sold separately.
- USB Dock Compatibility.
- Sigma has developed special software SIGMA Optimization Pro that can update the lens firmware and adjust parameters such as focus.
- USB Dock is sold separately.