🦅 Sony FE 100–400mm F4.5–5.6 GM OSS Lens

The Sony FE 100–400mm F4.5–5.6 GM OSS combines professional G Master image quality, fast subject tracking, built-in stabilization, and substantial telephoto reach in a remarkably versatile package. It is an outstanding choice for wildlife, birds, sports, aviation, outdoor events, and compressed landscape photography.

✨ Why Photographers Will Love the Sony 100–400mm GM OSS

• Versatile 100–400mm telephoto zoom range

• Outstanding G Master sharpness and contrast

• Fast, precise professional autofocus

• Optical SteadyShot image stabilization

• Excellent 0.35x close-up capability

• Compatible with Sony 1.4x and 2x teleconverters

• Adjustable zoom-ring torque

• Three customizable focus-hold buttons

• Removable rotating tripod mount

• Dust- and moisture-resistant construction

🦅 Built for Wildlife and Bird Photography

The 100–400mm range lets photographers move quickly between animals in their environment and tightly framed portraits of distant subjects.

At 400mm, the lens provides the reach needed for birds, wildlife, aviation, and field sports. Zooming back toward 100mm makes it easier to locate a moving subject, capture larger animals, or include more of the surrounding environment.

⚡ Fast, Reliable Subject Tracking

Sony combines a Direct Drive Super Sonic Wave Motor with a double Linear Motor system for fast, accurate autofocus throughout the zoom range.

The lens works with Sony’s subject-recognition and real-time tracking systems to follow birds, animals, athletes, vehicles, and other fast-moving subjects. Three focus-hold buttons provide convenient access in both horizontal and vertical shooting positions.

🔍 Exceptional G Master Image Quality

The optical design uses Super ED and ED glass elements to control chromatic aberration and color fringing while maintaining excellent resolution across the frame.

Nano AR Coating reduces flare and ghosting when photographing in backlight or around reflective surfaces. A nine-blade circular aperture provides smooth background rendering and attractive subject separation.

🛡 Optical SteadyShot Stabilization

Built-in Optical SteadyShot helps reduce blur caused by camera shake when photographing handheld or working at long focal lengths.

Selectable stabilization modes support:

• General handheld photography

• Panning with moving subjects

On compatible stabilized Sony cameras, lens and body stabilization can work together for improved handheld performance.

🔎 Impressive Close-Up Capability

The lens focuses as close as approximately 3.2 feet throughout its zoom range, reaching up to 0.35x maximum magnification.

This makes it surprisingly capable for flowers, butterflies, reptiles, larger insects, outdoor details, and product-sized subjects—especially at 400mm, where the longer working distance helps keep the photographer away from delicate or easily startled subjects.

🔭 Teleconverter Compatibility

The lens works with Sony’s optional full-frame teleconverters:

• With the 1.4x teleconverter, it becomes approximately 140–560mm F6.3–8.

• With the 2x teleconverter, it becomes approximately 200–800mm F9–11.

Teleconverters provide additional reach for wildlife, birds, sports, and distant subjects while retaining autofocus on compatible Sony cameras.

🎛 Adjustable Professional Handling

A zoom-torque adjustment ring allows the photographer to choose between smoother and tighter zoom operation. The tighter setting helps prevent unwanted barrel extension while carrying the camera, while the smoother setting allows faster focal-length changes.

Additional controls include:

• Three focus-hold buttons

• AF/MF switch

• Focus-range limiter

• Optical SteadyShot switch

• Stabilization-mode selector

• Removable tripod mount

📸 Who Is This Lens For?

The Sony FE 100–400mm F4.5–5.6 GM OSS is an excellent choice for:

• Bird and wildlife photographers

• Sports and action shooters

• Aviation and motorsports photographers

• Outdoor event professionals

• Landscape photographers seeking telephoto compression

• Nature photographers capturing flowers and close details

• Travelers wanting professional reach without a super-telephoto prime

⚖️ How It Compares

Compared with the Sony FE 200–600mm F5.6–6.3 G OSS, the 100–400mm is smaller, lighter, focuses much closer, and begins at a more versatile 100mm. The 200–600mm provides substantially greater native reach and an internal zoom design for dedicated wildlife and bird photography.

Compared with the newer Sony FE 100–400mm F4.5 GM OSS, this original version uses a variable F4.5–5.6 aperture and an earlier autofocus system. It remains a versatile professional telephoto with excellent image quality, stabilization, close focusing, and teleconverter support.

ℹ️ Full-Frame and APS-C Compatibility

On a full-frame Sony camera, the lens provides its native 100–400mm range. On an APS-C camera such as the a6700, it provides an angle of view equivalent to approximately 150–600mm, making it particularly useful for wildlife, birds, sports, and distant subjects.

📦 In the Box

• Sony FE 100–400mm F4.5–5.6 GM OSS Lens

• Front lens cap

• Rear lens cap

• Lens hood

• Removable tripod mount

• Lens case

• Printed documentation

🔗 Complete Your Kit

Pair the 100–400mm GM OSS with the Sony FE 24–70mm F2.8 GM II or 70–200mm F2.8 GM OSS II for professional coverage from standard through super-telephoto focal lengths. Add a Sony 1.4x teleconverter when additional reach is needed without moving to a much larger lens.

Sony lists a 49.3 oz. weight without the tripod mount, 77mm filter thread, 22 elements in 16 groups, 3.2-foot minimum focusing distance, 0.35x maximum magnification, and Optical SteadyShot stabilization.