Sigma 24-70mm F2.8 DG DN Art Lens - Sony E-mount

The Sigma 24-70mm F2.8 DG DN Art is a large aperture standard zoom lens designed for Sony full frame mirrorless cameras. This flagship zoom includes Sigma's dust & splash proof structure and water and oil repellent coating, so it's perfect for all photographic environments. Superior optical performance is achieved using Sigma advanded lens technology including Super Multi-Layer Coating, As extra-low dispersion glass materials, employing three aspheric lenses.

Optical performance
Extra-low dispersion glass materials, six sheets of “F” low dispersion (FLD) glass and two sheets of special low dispersion (SLD) glass are used. By employing three aspheric lenses, this zoom lens thoroughly subdues aberrations such as axial chromatic aberration or sagittal coma aberration. In addition to Super Multi-Layer Coating, Nano Porous Coating is employed. This lens is designed so as to be less affected by strong incident light such as flare. The mirrorless camera-dedicated design successfully contributes to reduction in the lens size and weight.

Fast, quiet AF wit eye detection compatiblity
Employing a stepping motor and the latest algorithm successfully establishes a good balance between acceleration and quietness of the AF drive. This enables stress-free focusing. Furthermore, this lens is compatible with the eye detection AF used more frequently in mirrorless cameras, which is capable of high-precision focusing at the time of portrait photography.

Sigma's unique coating technology Nano Porous Coating
The super multi-layer coating is combined with SIGMA’s unique coating technology “NPC (Nano Porous Coating)”. The lens has been designed to be less susceptible to strong incident light such as backlight. “NPC (Nano Porous Coating)” incorporates porous silica as the coating material. The porous silica layer has nano-sized holes with air inside. Having holes of this size enables a large reduction in the refractive index, allowing the reflectance to be lowered more than conventional anti-reflective coatings. As a result, reflected light causing flares and ghosting is sharply reduced, achieving clear image quality.

Robust construction
In consideration of shooting under challenging shooting conditions, the dust and splash-proof structure and water and oil-repellent coating are used. In addition, a variety of functions, such as an AFL button that can assign various functions to the lens barrel, a zoom lock switch that is unlocked by zoom operation, a nice touch AF / MF switch, are provided.