The Sony FE 50-150mm f/2 GM Lens (Sony E) is a groundbreaking, ultra-fast telephoto zoom lens engineered for full-frame mirrorless E-mount cameras. As a prominent addition to Sony’s flagship G Master series, it distinguishes itself as a highly versatile “prime killer,” offering a constant, ultra-bright f/2 maximum aperture across the entire focal range. This design effectively compresses the core focal fields of 50mm, 85mm, 105mm, and 135mm primes into a single body, making it a choice configuration for high-end weddings, portraits, indoor events, and sports.