In the world of photography, everyone should be loving to use a long-range zoom lens. Unlike prime lenses with fixed focal lengths, zoom lenses offer incredible versatility. However, zoom lenses have a common issue and that is the narrow aperture.

Sigma has introduced the world’s first f/1.8 full-frame zoom lens. Typically, zoom lenses have an aperture of f/2.8 or narrower, resulting in less light getting into the lens and producing darker images. Sigma had previously announced their plan to release the f/1.8 28-45mm zoom lens, and we covered this in an earlier article. This new lens is now available for purchase in China.

Sigma’s new full-frame 28-45mm f/1.8 zoom lens supports Leica L-mount and Sony E-mount. The lens weighs 960 grams and has a minimum focus distance of 30 cm. It is priced at 9797 Chinese Yuan, approximately $1350 USD. You can read our previously released article to learn more about Sigma’s new full frame Sigma 28-45mm zoom lens.

Related:

• Sigma Launches the World’s First 28-45mm Full Frame F1.8 DG DN Art Lens
• Sigma Announces the Upcoming Release of Their New 28-45mm F1.8 DG DN Art Lens…
• Sigma 24-70mm F2.8 II Lens Images Leaked, Promises Upgrades in Focusing & Tracking, Optical…

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Sigma has announced the upcoming release of their new 28-45mm F1.8 DG DN | Art lens in China, available starting June 18th at a price of 9,797 yuan. This lens boasts the title of the world’s first full-frame F1.8 zoom lens, offering photographers exceptional low-light performance and background blur control throughout the zoom range.

The lens is comprised of 15 groups and 18 elements, including 3 aspherical lenses

The Sigma 28-45mm F1.8 DG DN | Art lens features a constant F1.8 aperture, ideal for capturing sharp images in low-light conditions and achieving beautiful bokeh effects. The internal zoom structure ensures the lens maintains its overall length while focusing, promoting better balance when handling the camera. Additionally, the close focusing distance of 30cm allows for capturing captivating close-up shots.

Optically, the lens is comprised of 15 groups and 18 elements, including 5 SLDs and 3 aspherical lenses. This combination contributes to exceptional image quality by minimizing chromatic aberrations and ensuring sharp renderings throughout the frame. To further enhance image quality, Sigma has incorporated nano-porous coating and super multi-layer coating technology to reduce flare and ghosting, especially when shooting in backlit environments.

For quiet and smooth autofocus performance, the lens utilizes an HLA high-speed linear motor. Photographers who prefer manual focus will appreciate the inclusion of a bidirectional drive focus ring for precise control. The Sigma 28-45mm F1.8 DG DN | Art lens prioritizes creative control by featuring an aperture ring, an infinite aperture switch, and an aperture lock switch. It also boasts two customizable AFL buttons for assigning specific functions based on photographer preference.

A locking petal-shaped lens hood is included to minimize stray light from entering the lens and potentially affecting image quality. The lens itself is built with a dust-proof and splash-proof construction, allowing photographers to capture compelling images even in challenging weather conditions. Finally, the front lens group features a water and oil-repellent coating, making it easier to clean and maintain.

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Sigma has shaken up the world of full-frame lenses with the release of their brand new 28-45mm F1.8 DG DN Art lens. This innovative lens boasts several firsts, making it a highly attractive option for both professional and enthusiast photographers. Here’s a closer look at what makes this lens so special:

The lens has an internal zoom mechanism to eliminate lens creeping

The Sigma 28-45mm F1.8 DG DN holds the title of the world’s first full-frame zoom lens with a constant f/1.8 aperture. This impressive feat allows for exceptional low-light performance and beautiful background blur (bokeh) throughout the entire zoom range. Imagine capturing stunning portraits with a dreamy background at any focal length, from wide-angle to slightly telephoto. The constant f/1.8 aperture also rivals the performance of many high-quality prime lenses, offering exceptional image quality without the need to switch lenses for different lighting conditions.

Despite its impressive capabilities, Sigma hasn’t compromised on portability. The lens utilizes an internal zoom mechanism, ensuring the overall length remains constant while zooming. This eliminates the “lens creep” experienced with some zoom lenses and makes it ideal for travel or street photography. Additionally, the focusing distance remains a fixed 30cm throughout the zoom range, simplifying focusing calculations for close-up shots.

The Sigma 28-45mm F1.8 DG DN incorporates a sophisticated 18-element, 15-group lens structure. This complex design incorporates 5 SLD (Special Low Dispersion) elements and 3 aspherical lenses to effectively minimize chromatic aberrations and other optical distortions. These elements work together to deliver sharp, clear images across the entire frame, even at wider apertures. Furthermore, Sigma’s nano-porous coating and super multi-layer coating technology further enhance image quality by reducing flare and ghosting, especially when shooting in backlit situations.

Sigma hasn’t skimped on professional-grade features either. The lens utilizes a high-speed HLA linear motor for fast and quiet autofocus, ensuring you never miss a fleeting moment. The bidirectional drive focus ring allows for precise manual focus adjustments, perfect for situations demanding meticulous control. The lens also boasts a variety of physical controls, including an aperture ring, an infinite aperture switch, an aperture lock switch, two customizable AFL buttons (for assigning specific functions), and a locking petal-shaped lens hood.

Built to withstand the rigors of professional use, the Sigma 28-45mm F1.8 DG DN features a dust-proof and splash-proof lens body. The front lens group also comes equipped with a water and oil-proof coating, making it suitable for shooting in challenging environments. Whether you’re braving the elements or navigating dusty locations, you can be confident your lens will perform flawlessly.

With its exceptional image quality, constant fast aperture, and versatile zoom range, the Sigma 28-45mm F1.8 DG DN Art lens offers a all-in-one package for a wide range of photographers. Portrait photographers will appreciate the beautiful bokeh and low-light capabilities, while landscape and street photographers will benefit from the versatile zoom range and exceptional sharpness.

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Sigma is rumored to be releasing a second-generation 24-70mm F2.8 lens on May 16th. Leaked images from SonyAlphaRumors point towards the fact that the lens will be available in E/L mount options.

The current iteration of this Sigma lens was released in November 2019

This new lens is expected to boast improvements over the first generation, including better optical quality, a more compact and lightweight design, and enhanced focusing and tracking capabilities.

The current Sigma 24-70mm F2.8 DG DN lens, released in November 2019, features 19 elements in 15 groups (including 6 FLD lenses, 2 SLD lenses, and 3 aspherical lenses) for impressive image quality. It has a constant f/2.8 aperture, minimum aperture of f/22, 11 aperture blades, and a minimum focusing distance of 18-38cm. The filter size is 82mm and it weighs 830g (E mount) or 835g (L mount).

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