Sony FE 100-400mm f/4.5 GM - Lens review and specs

Note: the image may come from leaked material, be an AI recreation, or be a simple placeholder. Therefore, the final appearance of the lens may vary.

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Sony E Wide Angle Zoom full-frame

Image Stabilization

Weather Sealed

Autofocus

Full-time Manual Focus

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Compare with

100-400mm

Focal length

f/4.5

Max aperture

1840 g

Weight

14mm35mm85mm200mm600mm

▲ 100-400mm

Max aperture

f/2.8

f/4.5

f/11

Constant Aperture

Zoom Ratio: 4x
Zoom Method: internal

Focal length200 mm

100 mm400 mm

Near focus34' 4"

Far focus36' 10"

Total DOF2' 5"

Hyperfocal1011' 8"

Subject distance35' 6"

Focal length200 mm

Aperturef/4.5

SensorFull Frame

Illustrative scene preview based on this lens's focal length, aperture, and sensor coverage.

This preview uses 200mm, f/4.5, and Full Frame. Subject distance is estimated to keep lens previews comparable.

Diaphragm blades: 11

Optics

Special elements: 4 XD linear motors; 40.5mm drop-in rear filter holder; 21+ weather sealing points
Coatings: Nano AR coating; fluorine front-element coating

Focusing

Minimum focus: 1.5 m
Max magnification: 0.25×
AF motor: XD linear motor

Physical

Weight: 1840 g
Dimensions: ⌀120mm × 328mm
Filter thread: 95 mm
Hood included: Yes
Color: Black

Handling & Controls

Tripod Collar: Yes
Focus Limiter: Yes
Custom Buttons: 4

Recommended Use

Ideal for: Street, Vlogging, Weddings

The best

Internal zoom with field controls

Also

Action telephoto with OSS and 4 XD

Summary

Sony FE 100-400mm f/4.5 GM OSS is described as a full-frame telephoto zoom for demanding action, wildlife, and motorsport shooting. Its key formula combines a broad 100-400mm range with a constant f/4.5 aperture, giving photographers stable exposure behavior while switching focal length quickly during fast movement. A constant external shape during zoom operation is an important handling advantage, because it helps keep balance more consistent during reframing, panning, and continuous subject tracking.

The optical and mechanical package focuses on speed and control: OSS stabilization, four XD linear motors for autofocus drive, an 11-blade diaphragm, close focus around 1.5 meters, and maximum magnification near 0.25x. Nano AR coating, fluorine protection on the front element, and broad weather sealing are aimed at difficult outdoor conditions with dust, humidity, and frequent position changes. The 95mm front thread plus 40.5mm rear drop-in filter support adds practical flexibility for field filter use when contrast control and fast adaptation are needed under changing light.

In daily use, this lens style fits creators who prioritize reliable AF lock, consistent contrast, and direct external controls over long shooting sessions. Function buttons, focus limiter behavior, and AF/MF/DMF switching can reduce reaction time when subjects accelerate or change direction unexpectedly. Combined with stable balance on tripod, monopod, or gimbal setups, the lens is expected to support a high keeper rate in real-world coverage where rapid framing changes and confident tracking make the difference between missing and delivering decisive moments.