Sigma 50-100mm F1.8 DC HSM Art Lens for Sigma SA

Sigma 50-100mm F1.8 Art: Revolutionizing APS-C Photography

Overview:

The Sigma 50-100mm F1.8 DC HSM Art Lens stands out as a revolutionary addition to the APS-C format Sigma SA-mount camera lineup, offering a blend of versatility and exceptional optical quality. As the world's first APS-C 50-100mm zoom lens with a constant f/1.8 aperture, it excels in low-light conditions and provides superior control over depth of field. This lens merges the popular focal lengths of 85mm, 105mm, and 135mm (35mm equivalent), outshining typical f/2.8 telephoto zooms in brightness. It's part of Sigma's esteemed Art series, known for outstanding sharpness, clarity, and minimal chromatic aberrations. The Hyper Sonic Motor (HSM) ensures fast, silent, and precise autofocus, suitable for both photography and videography. Designed for versatility and durability, it features internal zoom and focus mechanisms and is weather-sealed for reliability in various shooting environments. With its advanced optical construction and robust build, the Sigma 50-100mm F1.8 DC HSM Art Lens is an ideal choice for APS-C photographers seeking top-tier image quality and performance in challenging lighting conditions.

More Details:

• World's First in Its Class: The only APS-C 50-100mm zoom lens with a constant f/1.8 aperture, offering superior low-light capabilities and depth of field control.
• Unrivaled Focal Range and Brightness: Combines essential focal lengths (85mm, 105mm, 135mm equivalent) in one lens, surpassing the luminosity of standard f/2.8 telephoto zooms.
• Art Series Excellence: Known for its exceptional sharpness, clarity, and minimized chromatic aberrations, characteristic of Sigma's premium Art line.
• Advanced Autofocus System: Features a Hyper Sonic Motor (HSM) for rapid, silent, and precise autofocusing, ideal for both still photography and videography.
• Built for Versatility and Durability: Equipped with internal zoom and focus mechanisms, maintaining a compact size, and weather-sealed for robust performance in challenging conditions.

• FLD glass, SLD glass, and high-refractive index, high-dispersion glass help minimize aberrations - 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 elements in every element group, this lens ensures outstanding image quality throughout the zoom and focal range.
• Hyper Sonic Motor - To achieve outstanding image quality and F1.8 brightness, SIGMA has enhanced its Hyper Sonic Motor (HSM). As with the previous SIGMA HSM, 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 a conventional full-time manual focus override.
• 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. 
• Designed to minimize flare and ghosting - SIGMA’s Super Multi-Layer Coating helps further reduce flare and ghosting and provides sharp, high-contrast images even in backlit conditions.

• Sigma 50-100mm F1.8 DC HSM Art Lens for Sigma SA
• Sigma Lens Cap
• Sigma Rear Lens Cap
• Sigma Lens Hood
• Sigma Lens Case
• Limited 1-Year Warranty
• Limited 3-Year U.S.A. Warranty Extension

Frequently Asked Questions about the Sigma 50-100mm F1.8 DC HSM Art Lens

What makes the Sigma 50-100mm F1.8 unique in its class?

This lens is the world's first APS-C 50-100mm zoom lens with a constant f/1.8 aperture, offering exceptional low-light performance and depth of field control.

Is this lens suitable for low-light photography?

Yes, the constant f/1.8 aperture provides excellent low-light capabilities, making it ideal for challenging lighting conditions.

What type of autofocus system does this lens use?

The lens features a Hyper Sonic Motor (HSM) for quick, quiet, and precise autofocusing, suitable for both stills and video.

Can this lens be used for professional video shooting?

Yes, its advanced autofocus system and constant aperture make it a great choice for professional videography.

Is the Sigma 50-100mm F1.8 Art Lens weather-sealed?

Yes, it has weather-sealed construction, making it reliable for use in various environmental conditions.

What are the main benefits of the Art series quality in this lens?

The Art series is known for exceptional sharpness, clarity, and control over chromatic aberrations, ensuring high-quality image output.

Is this lens compatible with full-frame cameras?

No, it is specifically designed for APS-C format cameras and is not suitable for full-frame cameras.

What is the weight of the Sigma 50-100mm F1.8 Art Lens?

The lens weighs approximately 1,490g (3.28 lbs), balancing robust construction with manageable handling.

Does this lens come with a warranty?

Warranty details vary by region, so it's recommended to check with local Sigma dealers for specific warranty information.

Are there any other mount options available for this lens?

Yes, Sigma also offers this lens in Canon EF and Sony E mounts, with slightly different specifications.