Sigma 28-45mm f/1.8 DG DN Art Lens: The Brightest Full-Frame Zoom

Sigma presents the 28-45mm f/1.8 DG DN Art Lens for Sony E-mount, the world’s first full-frame mirrorless zoom lens to offer a constant f/1.8 aperture throughout its zoom range. Combining the optical excellence of prime lenses with a compact, video-focused design, this lens delivers exceptional image quality across a versatile wide-to-normal focal range, making it an ideal choice for professionals on the move.

Design and Performance

• Advanced Optical Construction: With 18 elements in 15 groups, including three aspherical and five Special Low Dispersion (SLD) elements, this lens minimizes aberrations, flare, and ghosting to ensure outstanding clarity and color accuracy.
• Prime-Like Sharpness: Matches or exceeds the optical quality of Sigma Art primes, offering crisp detail and minimal distortion.
• Smooth Bokeh: The 11-blade rounded diaphragm produces stunning bokeh, adding depth and elegance to images.
• Close-Up Versatility: Features an 11.9" minimum focusing distance throughout the zoom range and a 1:4 maximum magnification ratio, perfect for tight spaces and detailed close-ups.
• Constant Bright Aperture: The consistent f/1.8 aperture enhances low-light performance and enables creative depth-of-field control.

Optimized for Video Production

• Internal Zoom Design: Maintains its length during zooming, ensuring stability on gimbals and improving ease of handling.
• Focus Breathing Suppression: Delivers smooth focus transitions, perfect for cinematic applications.
• Responsive Autofocus: Powered by a high-speed linear actuator, the autofocus system is fast, accurate, and whisper-quiet.
• Enhanced Manual Focus: Includes click and lock mechanisms for precise and intuitive focusing.
• Run-and-Gun Ready: The bright aperture and versatile zoom range make this lens a reliable tool for single-shooter setups.

Professional Build & Features

• Dual AFL Buttons: Assignable buttons for seamless customization.
• Focus Mode Switch: Effortlessly toggle between AF and MF modes.
• Advanced Coatings: Equipped with Super Multi-Layer and Nano Porous Coatings to minimize reflections, and a water- and oil-repellent front element for easy maintenance.
• Durable Construction: The dust- and splash-resistant design ensures reliable performance in challenging environments.
• Brass Bayonet Mount: Offers durability and precision for secure attachment.

The Sigma 28-45mm f/1.8 DG DN Art Lens is a groundbreaking tool for both photographers and filmmakers, delivering a unique blend of optical excellence, versatility, and durability. Whether for stills or video, this lens ensures top-tier performance in any setting.