Sigma 20mm F1.4 DG HSM Art Lens for Nikon F

Sigma 20mm F1.4 Art Lens: Ultra-Wide Excellence for Nikon

Overview:

The Sigma 20mm F1.4 DG HSM Art Lens stands out as a top-tier ultra-wide prime lens, specifically crafted for Nikon F-mount full-frame cameras. Renowned for its exceptionally fast f/1.4 aperture, this lens is a game-changer in low-light conditions and for creating striking bokeh effects due to its shallow depth of field capabilities. As part of Sigma's acclaimed Art series, it guarantees superior optical performance and sturdy build quality. The lens's advanced optical structure, featuring 15 elements in 11 groups with FLD and SLD glass, effectively reduces chromatic aberrations, ensuring sharp, high-resolution images across the entire frame. Its ultra-fast aperture not only excels in dim environments but also adds a professional touch with beautifully blurred backgrounds. The HSM (Hyper Sonic Motor) offers a smooth, precise, and near-silent autofocus, perfect for both photography and videography. Durably constructed and weather-sealed, it's ready for challenging conditions, making it a versatile tool for landscapes, architecture, astrophotography, and street scenes. With its combination of cutting-edge optics, rapid aperture, and robust design, the Sigma 20mm F1.4 DG HSM Art Lens is an exceptional choice for professionals and photography enthusiasts who demand high-quality and versatile wide-angle performance.

More Details:

• Exceptional Image Quality: Advanced optical design with 15 elements in 11 groups, including FLD and SLD glass, sharply minimizes chromatic aberrations for high-resolution images across the frame.

• Ultra-Fast f/1.4 Aperture: The lens's blazing-fast aperture excels in low-light conditions and enables the creation of professional-looking blurred backgrounds.

• Smooth, Quiet Autofocus: Equipped with the HSM (Hyper Sonic Motor), this lens ensures fast, accurate, and virtually silent autofocus, ideal for both stills and video.

• Robust Construction: High-quality materials and weather-sealing make this lens durable and reliable in various shooting conditions, including dust and moisture exposure.

• Versatility in Photography: The 20mm focal length is perfect for a wide range of photography genres, including landscape, architectural, interior, astrophotography, and street photography.

• Minimized chromatic aberrations - This lens minimizes chromatic aberrations, a common issue in large-aperture ultra-wide-angle lenses. It features two FLD (“F” Low Dispersion) glass and five SLD (Special Low Dispersion) glass elements to minimize transverse chromatic aberration, which is mainly visible around the edge of the image. The optimized lens power distribution helps minimize axial chromatic aberration. As a result, this lens delivers high image quality in every situation without color smearing, and its rendering performance is consistently sharp with high contrast.
• Minimized distortion - Distortion is a common issue in wide-angle lenses, and it is not possible to correct it simply by changing the aperture value. For this reason, a lens must be designed from the start to minimize this issue. By adjusting the incidence angle of light starting with the first lens element and incorporating optimally positioned aspherical glass elements, this lens minimizes distortion throughout the entire image.
• Exclusive low-dispersion glass - Most chromatic aberration can be removed by combining a high-refractivity convex lens element with a low-refractivity concave element. Yet residual chromatic aberration known as “secondary spectrum” may still remain. 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). In particular, FLD glass offers ultra-low dispersion in combination with high transmittance and the anomalous dispersion characteristics of fluorite.
• Flare and ghosting reduction - SIGMA’s Super Multi-Layer Coating reduces flare and ghosting to help photographers produce sharp and high-contrast images even in backlit conditions.
• Hyper Sonic Motor ensures high AF speed - 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. *Note: The operation of full-time MF may vary based on mount type.
• Rounded diaphragm - The 9-blade rounded diaphragm creates an attractive blur in the out-of-focus areas of the image.
• High-precision, rugged brass bayonet mount - The brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens.

• Sigma 20mm F1.4 DG HSM Art Lens for Nikon F
• Sigma Rear Lens Cap
• LC907-01 Cover Lens Cap
• Limited 1-Year Warranty
• Limited 3-Year U.S.A. Warranty Extension

Is the Sigma 20mm F1.4 DG HSM Art Lens compatible with all Nikon cameras?

It's designed for Nikon F-mount full-frame cameras but can also be used on APS-C models with a cropped field of view.

What makes this lens ideal for low-light photography?

The ultra-fast f/1.4 aperture allows more light, making it excellent for low-light conditions and indoor photography without flash.

Can this lens be used for videography as well as still photography?

Yes, the smooth and quiet autofocus provided by the HSM (Hyper Sonic Motor) makes it suitable for both stills and video shooting.

How does the lens perform in terms of image quality?

With its advanced optical design including FLD and SLD glass elements, it minimizes chromatic aberrations and delivers sharp, high-resolution images.

Is the Sigma 20mm F1.4 lens weather-sealed?

Yes, it features a dust- and moisture-resistant construction, making it reliable in various shooting environments.

What type of photography is this lens best suited for?

It's versatile for landscape, architectural, interior, astrophotography, and street photography, thanks to its 20mm focal length.

How does the weight and size of the lens affect its portability?

At 920g (2.03 lbs), it's relatively large and heavy, so it's important to consider its size and weight when traveling or choosing a camera bag.