Sigma 17-40mm f/1.8 DC Art Lens (Sony E)

Sigma 17-50mm f/1.8 DC Art Lens: A Bright, Versatile APS-C Zoom for Photo and Video

Sigma has unveiled a groundbreaking wide-to-normal zoom lens for APS-C mirrorless cameras: the 17-50mm f/1.8 DC DN Art Lens. Designed for both photographers and video creators, this lens offers a constant f/1.8 aperture throughout the zoom range—delivering prime-like optical performance in a compact, versatile package.

🔍 Key Features at a Glance:

• Constant f/1.8 aperture across 17–50mm range

• Exceptional image sharpness and bokeh

• Designed for APS-C mirrorless systems

• Internal zoom ideal for gimbals and video rigs

• Silent, responsive autofocus system

• Dust- and splash-resistant build

🛠️ Advanced Optical Design for Outstanding Performance

The Sigma 17-50mm f/1.8 DC Art lens is engineered with 17 elements in 11 groups, including:

• 4 aspherical elements

• 4 Special Low Dispersion (SLD) elements

This high-end optical formula minimizes distortion, chromatic aberration, flare, and ghosting—ensuring stunning clarity and contrast across the frame. It rivals the performance of Sigma’s legendary 18-35mm f/1.8 DC HSM Art lens, while offering greater range and improved handling for mirrorless shooters.

An 11-blade rounded diaphragm helps create a smooth, creamy bokeh when shooting wide open, perfect for portraits, low-light scenes, or isolating subjects from the background.

🔬 Macro-Like Versatility and Close Focusing

In addition to its fast aperture, the lens offers an impressively short minimum focusing distance of just 11 inches (28cm) throughout the zoom range. At 50mm, it achieves a maximum magnification ratio of 1:4.8, making it ideal for close-up shots, detail work, and creative compositions in tight spaces.

Built for Video: Internal Zoom & Suppressed Focus Breathing

Video shooters will appreciate the lens’s internal zoom design, which keeps its length consistent during use—making it easier to balance on gimbals, cages, and other rigs.

Sigma has also minimized focus breathing, a critical feature for smooth and cinematic focus pulls. The autofocus system uses a high-speed, high-response linear actuator, delivering accurate and whisper-quiet AF, essential for both vlogging and professional production.

Additional video-friendly features include:

• Two customizable AFL buttons

• Dedicated focus mode switch

• Click-and-lock manual focus enhancements

Professional Build Quality

Designed for durability and real-world use, the 17-50mm f/1.8 Art lens includes:

• Dust- and splash-resistant construction

• Oil- and water-repellent coating on the front element

• Solid brass bayonet mount for long-lasting reliability

Who Is This Lens For?

Whether you’re a run-and-gun videographer, a travel photographer, or a hybrid content creator, the Sigma 17-50mm f/1.8 DC Art offers an ideal balance of performance, portability, and versatility—all while maintaining pro-level image quality.

Final Thoughts

The Sigma 17-50mm f/1.8 DC DN Art is more than just a fast zoom—it’s a game-changing lens for APS-C mirrorless users looking to streamline their kit without sacrificing quality. With excellent low-light performance, a wide creative range, and features optimized for video production, it’s one of the most exciting zoom lenses in its class.