Sigma 693955 50-100 mm F1.8 DC HSM Art Lens for Nikon Camera, Black

Description

From the manufacturer

Offering the highest level of image quality, this large-aperture F1.8 standard lens stimulates the desire to create

Introducing SIGMA’s second APS-C format zoom lens offering a large F1.8 aperture throughout the zoom range.

A mid-tele zoom lens delivers prime lens-level image quality with a large F1.8 aperture throughout the zoom range. SIGMA was determined to create a zoom lens that offers the same brightness and resolution as a fixed focal length lens: in other words, the highest level of optical performance and expressive power. The first result of this challenge was the SIGMA 18-35mm F1.8 DC HSM | Art. In addition to fulfilling the exacting requirements of SIGMA’s Art line, this lens was the world’s first APS-C zoom for DSLRs to offer a constant F1.8 aperture value throughout the zoom range. Building on this concept, SIGMA has developed the new SIGMA 50-100mm F1.8 DC HSM | Art lens, a large-diameter mid-range telephoto zoom lens. While offering even greater brightness than a F2.8 telephoto zoom, this lens covers the focal lengths of three prime lenses in one package: 85mm F1.8, 105mm F1.8, and 135 mm F1.8 (35mm equivalent). A true game-changer, this lens is ideal for portraits with subtle bokeh effects and more, and it sets a new standard for zoom lens image quality.

Technologies that realize Art line image quality in a zoom lens

To help minimize axial and transverse chromatic aberration, this lens features an optimal arrangement of three FLD (“F” Low Dispersion) glass elements, one SLD (Special Low Dispersion) glass element, three high-refractive index SLD glass elements, and one high-refractive index, high-dispersion glass element. By including one or more low-dispersion element in every element group, this lens ensures outstanding image quality throughout the zoom and focal range.

* FLD glass is ultra-low-dispersion glass that offers performance of the highest level. Highly transparent, its refractive index and dispersion are extremely low as compared to conventional types of glass. It offers characteristics very similar to those of fluorite, which is valued for its high anomalous dispersion. These characteristics minimize residual chromatic aberration (secondary spectrum), which cannot be corrected by ordinary optical glass, while helping to produce sharp, high-contrast images.

Designed to minimize flare and ghosting

From the start of the design process, SIGMA measured flare and ghosting to establish an optical design that is resistant to strong incidental light sources such as backlight.

The 9-blade rounded diaphragm creates an attractive blur in the out-of-focus areas of the image.

Diaphragm unit designed for smooth operation

The diameter of the diaphragm is the second-largest in the SIGMA lens lineup after that of the SIGMA 200-500mm F2.8 / 400-1000mm F5.6 EX DG, necessitating smoother and quicker operation than ever before. To achieve this goal, the diaphragm blades feature Carbon Feather film, and the diaphragm unit features a new polycarbonate made with fluorine. Thanks to these innovations, diaphragm operation is exceptionally smooth even during continuous shooting, while the new polycarbonate is exceptionally durable and wear-resistant.

Outstanding zoom lens maneuverability

Since its release, the SIGMA 18-35mm F1.8 DC HSM | Art has been widely used for videography. Understanding that the SIGMA 18-35mm F1.8 DC HSM | Art and new SIGMA 50-100mm F1.8 DC HSM | Art will often be used together, SIGMA has made the style of operation the same for both lenses, including the feel of focusing and zooming. Thanks to SIGMA’s inner focus and inner zoom technologies, adjusting the focus and zoom rings does not change the length of the lens, and turning the zoom ring is not prone to cause focus shift.

SIGMA WR CERAMIC PROTECTOR 82mm (OPTIONAL)

With many applications in aerospace and other industries, glass ceramic is an extremely tough type of crystallized glass that serves as the foundation for Clear Glass Ceramic. While featuring the high transmittance required of optical devices, this advanced new material combines greater hardness than chemically strengthened glass and greater flexibility than sapphire crystal glass. These qualities make Clear Glass Ceramic the ideal material for protective lens filters.

Hyper Sonic Motor ensures high AF speed

The Hyper Sonic Motor (HSM) ensures silent, high-speed autofocusing, while the optimized AF algorithm helps realize even smoother AF performance. At any time during AF, users may access MF simply by rotating the focus ring. This feature makes faster focus adjustment possible, since there is no need to use the AF/MF focus mode switch. Also, the optional SIGMA USB DOCK allows the user to set the lens to conventional full-time manual focus override. Note: The operation of full-time MF may vary based on mount type

Supplied Accessories

Petal type Lens Hood LH880-02*

FRONT CAP LCF III 82mm

REAR CAP LCR Ⅱ

*The lens hood cuts harmful rays that can negatively affect photographs while also minimizing reflectivity within the hood itself. The hood also features a rubber construction and a non-slip groove to make it easy to hold in a variety of shooting situations.

Made in Japan

All Sigma products, lenses, cameras and flash units are manufactured exclusively by Sigma in Sigma’s own factory in Aizu, Japan. No Sigma Corporation product – lens, camera or flash – is manufactured outside of Japan. This is very unusual these days, as most companies have at least some of their products produced outside of Japan because of cost considerations.

There’s a reason why SIGMA continues to insist on the very highest quality in its product manufacturing: our love of photography is second to none.

We deeply appreciate the photographer’s desire to record and express—the passion of the photographer.

ART 50-100mm F1.8 DC HSM Specifications

Lens Construction 21 elements in 15 groups Angle of View 31.7 – 16.2 degrees Number of Diaphragm Blades 9 Blades (Rounded diaphragm) Minimum Aperture F16 Minimum Focusing Distance 95cm / 37.4in. Maximum Magnification 1:6.7 Filter Size Diameter 82mm Dimensions 93.5mm × 170.7mm / 3.7in. × 6.7in. Weight 1,460g / 52.6oz.

• Offering the focal length of three f/1.8 prime lenses in one
• Focal lengths perfect for portrait photography
• Features SLD and FLD glass elements for incredible image quality
• Fast and near silent HSM autofocus motor
• 9 blade rounded diaphragm for smooth bokeh
• Angle of view(Defocus Control) is 31.7 degree to 16.2 degree