Sony is preparing to announce what it claims will be the world’s lightest 400mm and 600mm telephoto prime lenses, according to a leak shared on Fredmiranda and reported by Sony Alpha Rumors. The upcoming Sony FE 600mm f/6.3 GM OSS and FE 400mm f/4.5 GM OSS lenses are expected to weigh approximately 995g and 994g respectively, offering a compelling blend of reach and portability for professional and advanced creator workflows.

These lenses are designed to pair seamlessly with Sony’s Alpha series cameras, renowned for their advanced autofocus systems and high-resolution sensor technology. Sony’s real-time tracking and eye-AF capabilities, combined with back-illuminated Exmor RS sensors in models like the Alpha 1 and Alpha 7 IV, enable creators to maintain sharp focus on fast-moving subjects — a critical advantage when using long telephoto primes in dynamic environments such as wildlife, sports, or event photography.

The addition of an 8-14mm f/3.5 fisheye lens, rumored to be priced around $1,499, further expands Sony’s creative toolkit, offering ultra-wide perspectives for immersive videography and architectural content. Together, these lenses reflect Sony’s ongoing strategy to support creators with lightweight, high-performance gear that doesn’t sacrifice the optical quality or AF precision expected from its G Master line.

While official pricing and availability remain unconfirmed, the leak suggests announcements could arrive within two to three weeks. For creators invested in the Sony ecosystem, these developments signal a continued push toward balancing professional capability with everyday usability — especially for those who shoot on the move or rely on gimbal and drone-assisted setups where weight savings directly impact endurance and agility.

Sony’s focus on minimizing size and weight without compromising on core imaging technologies underscores its commitment to empowering visual storytellers who demand both performance and flexibility in the field.