Sigma introduces its 50-120mm F2.8 DC OS | Contemporary

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Sigma 50-120mm F2.8 DC OS | Contemporary

Sigma Corp. of America announced the Sigma 50120mm F2.8 DC OS | Contemporary, a telephoto zoom for APS-C mirrorless cameras that covers roughly 75-180mm in full-frame terms at a constant F2.8 in a compact, lightweight body. It completes Sigma’s constant-F2.8 Contemporary zoom series alongside the 10-18mm F2.8 DC DN and the 18-50mm F2.8 DC DN, giving small format camera operators ultra-wide to telephoto coverage at F2.8 in three lenses that together weigh less than a lightweight laptop.

This lens launches simultaneously for Sony E-mount, FUJIFILM X Mount and Canon RF mount. It will be available from  dealers starting Oct. 22, 2026, for $799 USD.

The 50-120mm fills the role of the classic 70-200mm F2.8 at a fraction of the size and weight. It adds features rarely combined in a lens this small: optical stabilization rated up to 6.5 stops, a dedicated aperture ring, a fast linear autofocus motor, a design that minimizes focus breathing for video, and a dust- and splash-resistant build with a water- and oil-repellent front element.

“Sigma’s Contemporary line has always emphasized an exceedingly compact form factor and reduced weight without compromising our standard for image quality,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “The 50-120mm F2.8 meets that benchmark while pushing the line forward in build and handling, including an aperture ring not found on its sister lenses.”

The 50-120mm is the first APS-C zoom in Sigma’s Contemporary line to include an aperture ring.

Written by 

Gary Pageau is principal of InfoCircle LLC, continuing his marketing communications career. InfoCircle LLC is a marketing and communications consulting firm, specializing in business-to-business markets. For nearly 25 years, he was with PMA International, serving most recently as Publisher, Content Development and Strategic Initiatives. His primary responsibilities included overseeing the Association’s editorial department, marketing research unit, education and corporate relations department.