Sony fans have plenty to be excited about as the first leaked image of the Sony FE 100-400mm f/4.5 GM has surfaced, signaling a major update to one of the most popular focal ranges in the G Master lineup. This latest leak suggests Sony is prioritizing both performance and a more streamlined design for its high-end telephoto zoom.
Key Specifications and Design
Unlike its predecessor, the new FE 100-400mm GM is rumored to feature an internal zoom mechanism. This is a significant shift that keeps the physical length of the lens constant while zooming—a feature highly valued by wildlife and sports photographers for better balance and weather sealing. Interestingly, reports indicate the lens will have a physical length similar to the FE 200-600mm G, though with the premium build and optics associated with the GM badge.
Pricing and Availability
The lens is expected to hit shelves as early as May 2026. Rumors suggest Sony may bundle this announcement with the highly anticipated Sony a7R VI. In terms of cost, pricing is expected to be comparable to the FE 50-150mm GM, positioning it as a top-tier investment for professionals.
More Glass on the Horizon
The 100-400mm GM is just one part of a larger roadmap. Sony is reportedly preparing three other lenses for 2026:
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Sony 16-28mm f/2 GM: Aiming to be the world’s fastest ultra-wide zoom in its class.
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Sony 100-400mm G: A budget-friendly, variable-aperture alternative that is lighter and more accessible than the GM version.
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Sony 200mm f/2 GM: A “holy grail” prime lens that remains a lower-probability rumor but is still on the radar.
With these releases, Sony continues to broaden its E-mount ecosystem, offering both elite-level “G Master” performance and more affordable “G” series options for hobbyists.