Sigma 20mm F1.4 DG HSM Art Lens for Sony E

Sigma 20mm F1.4 DG HSM Art: The Ultimate Ultra-Wide Lens for Sony E-mount

Overview:

The Sigma 20mm F1.4 DG HSM Art lens stands out as a top-tier ultra-wide-angle prime lens, specifically crafted for Sony E-mount full-frame mirrorless cameras. This lens is a gem in low-light conditions, astrophotography, and for achieving artistic bokeh, thanks to its ultra-fast f/1.4 aperture. As a member of Sigma's renowned Art series, it promises superior optical performance and robust build quality. Its sharpness and resolution are impressive, even at wide apertures, and it effectively minimizes distortion, making it perfect for capturing landscapes, architectural details, and celestial wonders. The lens is built to endure tough shooting environments, being both weather-sealed and dustproof. Its silent, speedy autofocus, powered by an HSM motor, ensures precise and unobtrusive operation. Despite its high-end features, the lens remains lightweight and compact, making it an excellent travel companion for photographers. With a focal length of 20mm and a maximum aperture of f/1.4, it offers a unique blend of wide-angle perspective and shallow depth of field, ideal for a range of creative applications. While it commands a premium price, its unique combination of features and performance makes it a worthwhile investment for serious photographers seeking a versatile, high-quality lens for diverse photographic needs.

More Details:

• Ultra-Fast f/1.4 Aperture: Experience unparalleled low-light performance and stunning bokeh effects, perfect for creative photography.
• Exceptional Sharpness and Resolution: Delivers top-notch image quality even at wide-open apertures, capturing every detail with clarity.
• Minimal Distortion: Ideal for landscape, architectural, and astrophotography, ensuring true-to-life images.
• Durable Construction: Built to withstand harsh shooting conditions, this lens is weather-sealed and dustproof, enhancing its longevity.
• Silent and Fast Autofocus: Equipped with an HSM motor for accurate, quiet focusing, making it suitable for both stills and video.
• Lightweight and Compact Design: Easy to carry, making it a great choice for travel and everyday 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 Sony E
• Sigma LC907-01 Plastic 20mm f/1.4 Lens Cap
• Sigma Rear Lens Cap
• Sigma Lens Case
• Limited 1-Year Warranty
• Limited 3-Year U.S.A. Warranty Extension

Is the Sigma 20mm F1.4 DG HSM Art lens compatible with APS-C cameras?

Yes, this lens is compatible with APS-C Sony E-mount cameras, providing a 30mm equivalent focal length.

What type of photography is the Sigma 20mm F1.4 best suited for?

It's ideal for low-light photography, astrophotography, landscapes, and architectural photography, thanks to its wide angle and fast aperture.

Does the lens have image stabilization?

No, the Sigma 20mm F1.4 DG HSM Art does not have built-in image stabilization.

Is the autofocus system of this lens quiet?

Yes, the lens features a Hyper Sonic Motor (HSM) which ensures a silent and fast autofocus, making it suitable for video as well as still photography.

How does the lens perform in harsh weather conditions?

The lens is weather-sealed and dustproof, making it reliable for use in various harsh shooting conditions.

Are there any issues with chromatic aberrations?

Some users report minor chromatic aberrations at wide apertures, but these can be easily corrected in post-processing.

What is the weight of the Sigma 20mm F1.4 DG HSM Art lens?

The lens weighs approximately 730g (1.61 lbs), balancing high-quality construction with portability.

Does the lens come with a warranty?

Yes, it comes with a 5-year warranty, ensuring long-term reliability and customer satisfaction.