Summary
- Sony officially announced the FE 400mm F4.5 GM OSS and FE 600mm F6.3 GM OSS.
- They weigh 994 g and 995 g respectively, excluding the tripod foot.
- They support up to 120 fps with AF/AE tracking on the Alpha 9 III, OSS and 1.4x/2x teleconverters.
- Availability begins in October 2026, while official European euro pricing had not yet been confirmed.
Sony has officially announced the FE 400mm F4.5 GM OSS and FE 600mm F6.3 GM OSS, two full-frame G Master super-telephoto primes that stay under one kilogram and are aimed primarily at wildlife, birding and sports photography.
The two E-mount primes weigh approximately 994 g and 995 g respectively, excluding the tripod foot. Sony describes them as the lightest lenses in their respective classes as of the September 2026 announcement, while the center of gravity has been moved closer to the camera body to improve handling, panning and tracking of moving subjects.
The core specifications that appeared in an earlier unconfirmed report about Sony’s two super-telephoto primes have now been confirmed by Sony itself, together with details about optical design, autofocus, stabilization and teleconverter support.
Two G Master primes under one kilogram
The FE 400mm F4.5 GM OSS has a maximum diameter of about 108 mm, a length of 242 mm and weighs 994 g without the tripod foot. The FE 600mm F6.3 GM OSS keeps roughly the same diameter, measures 263 mm long and weighs 995 g. A difference of just one gram between the two lenses is remarkable at these focal lengths.
Sony places particular emphasis on weight distribution. The center of gravity sits closer to the camera body and tripod collar area rather than toward the front of the lens. In practice, this matters more than the absolute weight figure, especially during long handheld sessions, bird tracking and fast panning at sporting events.
G Master optics and an 11-blade aperture
Both lenses use three Super ED elements and one ED element to suppress chromatic aberration and other optical errors that become particularly demanding at super-telephoto focal lengths. Sony claims high resolution from the center of the frame to the edges.
Nano AR Coating II is designed to reduce flare and ghosting in difficult backlit conditions, while the 11-blade circular aperture and optimized spherical aberration are intended to deliver the smooth bokeh associated with the G Master line.
Autofocus, 120 fps and stabilization for handheld shooting
Autofocus is driven by two XD Linear Motors with a control algorithm optimized specifically for the new lenses. Sony claims fast, precise and quiet focusing, with full support for continuous shooting at up to 120 fps with AF/AE tracking when the lenses are paired with the Alpha 9 III, under Sony test conditions.
Both lenses include built-in Optical SteadyShot. They also support Active Mode and coordinated stabilization control with compatible camera bodies, which is directly relevant for photographers who want to work without a tripod or monopod. For video, they support the breathing compensation function of compatible bodies to correct angle-of-view changes caused by focus shifts.
Controls and teleconverters up to 800mm and 1200mm
The barrel includes four customizable focus hold buttons, a function ring, focus range limiter, Full-time DMF, AF/MF switch and image stabilization mode switch. The construction is designed with dust and moisture resistance in mind, although it is not completely sealed, and the front element has a fluorine coating for easier cleaning.
Both lenses are compatible with the SEL14TC 1.4x and SEL20TC 2x teleconverters. With the 2x converter, the 400mm reaches 800mm and the 600mm reaches 1200mm, significantly extending reach for small or very distant subjects.
Price and availability
Sony Electronics says both lenses will be available from October 2026. In the United States, the FE 400mm F4.5 GM OSS carries an MSRP of $2,699.99, while the FE 600mm F6.3 GM OSS is priced at $3,699.99.
At the time of PTTL’s check, Sony’s European press centre had not yet published an official euro price, so the U.S. prices are not converted. Greek pricing and availability have not yet been confirmed either.
More information about the FE 400mm F4.5 GM OSS is available here and the FE 600mm F6.3 GM OSS here.
What we think
The most important part of this announcement is not simply the addition of two long focal lengths, but Sony’s attempt to bring the professional G Master concept into lenses that can realistically be used handheld for extended periods. For wildlife and sports photographers, the combination of roughly one-kilogram weight, fast AF, OSS and full 120 fps compatibility with the Alpha 9 III matters far more than a simple specification race. Real-world optical performance, stabilization effectiveness and European pricing will ultimately determine how compelling the lenses are.
Frequently asked questions
How much do the Sony FE 400mm F4.5 GM OSS and FE 600mm F6.3 GM OSS weigh?
The 400mm weighs approximately 994 g and the 600mm approximately 995 g, excluding the tripod foot.
Do they support 120 fps with autofocus?
Yes. Sony states that both lenses fully support continuous shooting at up to 120 fps with AF/AE tracking on the Alpha 9 III, under Sony test conditions.
Do they have optical image stabilization?
Yes. Both include Optical SteadyShot and also support Active Mode and coordinated stabilization control with compatible camera bodies.
When will they be available and how much will they cost?
Availability is scheduled for October 2026. Official U.S. pricing is $2,699.99 for the 400mm and $3,699.99 for the 600mm. Official euro pricing had not yet been confirmed at the time of PTTL’s check.
