Sigma 105mm f/1.4
Sigma 105mm f/1.4 DG HSM Art Lens is a short-telephoto. Portrait-length prime distinguished by its bright maximum aperture and advanced optical layout. The fast f/1.4 design greatly benefits working in low-light conditions. And also affords extensive control over depth of field for isolating subjects and working with selective focus. A Super Multi-Layer Coating also enhances image quality by suppressing lens flare and ghosting for improved contrast and colour fidelity in strong lighting conditions. Additionally, a rounded nine-blade diaphragm contributes to a pleasing bokeh quality.
Complementing the imaging capabilities, the lens sports a Hyper Sonic Motor to produce quick, smooth, and quiet autofocus performance with full-time manual focus override. The physical design utilizes Thermally Stable Composite material for durability in a wide range of environments, and a brass bayonet mount also offers rigidity and mounting precision.
Large 105mm-diameter front contributes to improved peripheral illumination in order to reduce vignetting.
Nine-blade rounded diaphragm contributes to a smooth and pleasing bokeh quality.
The HSM also permits full-time manual focus control simply by rotating the focus ring at any time.
Protective coating has been applied to the front element and is both water and oil-repellent to aid in cleaning.
Included rotating tripod collar features an Arca-type compatible foot for seamless use atop a tripod or monopod.