![]() * L-Mount is a registered trademark of Leica Camera AG. * This product is developed, manufactured and sold based on the specifications of E-mount which was disclosed by Sony Corporation under the license agreement with Sony Corporation. ![]() *For Nikon F mount cameras, please see Nikon camera compatibility Functionality may be limited on some camera bodies. * The Nikon mount version of this lens includes an electromagnetic diaphragm mechanism. The degree to which light is refracted by glass depends on the light's waveleng… The polygonal shape of a conventional iris dia phragm causes out-of-focus light… The Hyper Sonic Motor (HSM) is an original SIGMA development that uses ultrason… Incorporates a water and oil-repellent coating that allows water to be wiped aw… The brass mount combines high precision with rugged construction. High-precision, rugged brass bayonet mount.The Nikon mount version of this lens includes an electromagnetic diaphragm mech… Nikon electromagnetic diaphragm mechanism.This lens features a highly effective dust and splash resistant structure with … Meticulous deployment of these types of exclusive low-dispersion glass and optimization of power distribution gives SIGMA lenses superlative image rendition undiminished by residual chromatic aberration. In particular, FLD glass offers ultra-low dispersion in combination with high transmittance and the anomalous dispersion characteristics of fluorite. To minimize this secondary spectrum, which can be a serious issue with conventional lenses, SIGMA lenses feature up to three types of exclusive low-dispersion glass offering superior performance: ELD (Extraordinary Low Dispersion), SLD (Special Low Dispersion) and FLD (“F” Low Dispersion). Yet residual chromatic aberration known as “secondary spectrum” may still remain. Most chromatic aberration can be removed by combining a high-refractivity convex lens element with a low-refractivity concave element. The result is chromatic aberration, the color fringing that is particularly noticeable in telephoto lenses. This fact causes different colors of light to focus at slightly different points. The degree to which light is refracted by glass depends on the light’s wavelength. Designed with great care to ensure that both the in-focus and out-of-focus areas of the photograph are equally satisfying to the eye, this lens is truly a “bokeh master.” The SIGMA 105mm F1.4 DG HSM | Art has earned its place as the flagship of the F1.4 Art line lenses, prioritizing image quality above all to fulfill the promise of the line, delivering truly amazing optical performance. Boasting the longest focal length of the F1.4 Art line lenses, the new lens combines outstanding resolution with a beautiful bokeh effect. SIGMA has designed all of these lenses to offer minimal optical aberration and deliver incredible resolution and stunning contrast. Now, with the introduction of the new 105mm F1.4 DG HSM | Art, SIGMA offers a total of nine lenses with F1.4 brightness, including six for full-frame cameras and three for APS-C cameras. ![]() Since introducing its first SIGMA Global Vision F1.4 lens in 2012, the 35mm F1.4 DG HSM | Art, SIGMA has been adding wide-aperture F1.4 options to the lineup.
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