An F2 telephoto zoom that rivals prime lens qualityWorld's first F2 zoom lens at 150mm with a constant F2 aperture is ideal for portraits, weddings, sports, and more. Sharpness and contrast rival prime lens quality, while F2 brightness, unrivalled Af, a versatile zoom range, and a compact, lightweight design offer extraordinary creative scope for stills and movies.World's first f2 zoom for 150mmThe Sony Fe 50-150mm F2 Gm isn't just a lens. It's your backstage pass to a world where image quality, speed, and creative freedom collide in glorious harmony. It's the world's first zoom lens to stretch from 50mm to 150mm with a constant, gloriously bright F2 aperture.Crisp clarityWith two precision Xa (extreme aspherical) elements in its arsenal, this lens delivers edge-to-edge clarity that holds its own against the best prime lenses in the market.