Sigma - Art 105mm f/1.4 DG HSM Telephoto Lens for Nikon F - Black

" SIGMA has designed the Sigma 105mm F1.4 Art DG HSM to offer minimal optical aberration and deliver incredible resolution and stunning contrast. Boasting the longest focal length of the F1.4 Art line lenses, this lens combines outstanding resolution with a beautiful bokeh effect. 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”. With outstanding wide-aperture, mid-telephoto performance with F1.4 brightness at maximum aperture, this lens incorporates 17 optical elements in 12 groups, an uncommonly large number of elements for a prime lens. By including three FLD glass elements, two SLD glass elements, and one aspherical lens element, the optical system minimizes axial chromatic aberration to deliver extremely high resolution along with ample peripheral light volume. 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. The 105mm F1.4 DG HSM | Art features a highly effective dust- and splash-proof structure with special sealing at the mount connection, manual focus ring, cover connection, and other areas, allowing photographers to work in all types of weather. In addition, the front of the lens is protected by a water- and oil-repellent coating that makes cleaning easy. Instead of conventional ABS plastic, the exclusive lens hood features CFRP (carbon fiber reinforced plastic), a light but strong material used in the interior and exterior fittings of aircraft, among many other applications. The removable Arca-Swiss tripod socket is compatible with Arca-Swiss platform and clamps, and its exclusive protective cover makes the lens easier to carry and use when shooting hand-held. Art Lens Engineered for those who see photography as an expression of self, Sigma’s Art line offers sophisticated optical performance and abundant expressive power to deliver faithfully on your artistic vision. DG - DG for Digital Sigma's DG lenses are specifically designed to deliver the ultimate level of performance on full frame digital SLRs. Sigma DGs also maximize the abilities of 35mm SLR cameras and APS-C size DSLRs. Thanks to a complete and comprehensive approach to the correction of chromatic aberrations, you will experience incredible image clarity and smoothness. Specific attention was paid to helping eliminate color fringing often caused by lateral chromatic aberration, a problem that is magnified at high resolution in digital photography. DG lenses provide exceptionally high contrast along with subtle gradations in tone and color. Super Multi-Layer Coating, along with Sigma's optimized optical design work to reduce reflections between the image sensor and the lens surfaces. The large image circles of DG lenses mean there will always be enough peripheral illumination to avoid vignetting. HSM - Quiet and Fast Autofocusing HSM lenses employ a motor powered by ultrasonic waves that produce a quiet, yet high-speed AutoFocus. You can enjoy high performance with low noise in a variety of shooting situations. Peripheral Brightness The most effective method of ensuring ample light is to maximize the diameter of the first element of the optical system. With its large filter diameter of 105mm, the SIGMA 105mm F1.4 DG HSM | Art delivers a significantly greater volume of peripheral light than other lenses in its class. Minimizing vignetting while offering a beautiful bokeh effect, this lens is ideal for portrait photography. Focus Full-time manual focus function allows the lens to be switched to manual focus simply by rotating

Brand Sigma MPN ? Lens Series Sigma DG, ART Color Black Lens Type Telephoto Lens Mount Nikon Format Compatibility Full Frame Focus Type Auto Focus Focusing Technology N/A Closest Focus Distance 39.4" / 100 cm Distance Information N/A Built-In Motor N/A Focal Length 105mm Angle Of View 23.3 deg. 35mm Equivalent Focal Length Not Applicable Coverage N/A Minimum Aperture f/16 Maximum Aperture f/1.4 Maximum Magnification 1:8.3 Lens Coating N/A Aspherical Elements N/A ED Glass Elements N/A Filter Size 105mm Lens Elements / Groups 17 Elements / 12 Groups Diaphragm Blades 9 (rounded diaphragm) Dimensions D x L 4.6 x 5.2" (115.9 x 131.5mm) Weight 58.0oz / 1645g Image Stabilization Type None Tripod Collar Yes Waterproof / Water Resistant Splash-proof structure Dust Resistant Dust-proof structure