From Sigma:

Clear, sharp images and amazing mobility. A handy-size 500mm that offers a whole new shooting experience The Sigma 500mm F5.6 DG DN OS | Sports is an ultra-telephoto prime lens exclusively for mirrorless cameras that features a 500mm focal length with outstanding image quality in a remarkably compact and lightweight body. By incorporating multiple large-diameter, exclusive low-dispersion glass elements that are challenging to process, Sigma succeeded in significantly downsizing the lens construction without the use of diffractive optical elements. At the same time, the lens has achieved high resolving power that meets the expectations for a 500mm prime lens. The lens body, composed mainly of high-precision engineering plastic parts, has excellent build quality and weather resistance, including dust and splash resistant structure, despite its compact size. With its rich descriptive power and incredibly compact size for its focal length, the handy-size Sigma 500mm F5.6 DG DN OS | Sports offers a whole new photographic experience for wildlife, aviation, sports and other fast-action photographers.

Official Website

Reviews:

• Cameralab: Sigma 500mm f5.6 DG DN Sports review, Gordon Laing, Mar 2024
• PetaPixel: Sigma 500mm f/5.6 DG DN Sport Review: The Perfect Telephoto?, Chris Niccols, Feb 2024
• LensTip.com: Sigma S 500 mm f/5.6 DG DN OS, Maciej Latałło, Apr 2024

YouTube:

• Jared Polin: Sigma 500mm f5.6 REVIEW: The BEST “Budget” Prime Lens for Wildlife & Sports? (vs Sony 200-600)
• PetaPixel: Sigma 500mm f/5.6 DG DN Sport Review: This Might Be The PERFECT Telephoto!
• Olle Nilsson: SIGMA 500mm f5.6 for SONY - Real World Review
• Matt Granger: My Favorite 500mm Lens - The Sigma 500mm f5.6 is Brilliant!
• Christopher Frost: Sigma 500mm f/5.6 DG DN ‘Sports’ lens review
• Tony & Chelseah Northrup: COMPACT SONY WILDLIFE LENS! Sigma 500mm f/5.6 Review for Sony