Sony FE 100-400mm F/4.5–5.6 GM OSS Lens
The Sony FE 100-400mm F4.5–5.6 GM OSS is a 100–400mm f/4.5 lens designed for Sony E mount cameras. Used copies start from $1,615.35 on GearFocus, with buyer protection on every purchase.

Sony FE 100-400mm F/4.5–5.6 GM OSS Lens
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Lens Overview — Sony FE 100-400mm F4.5–5.6 GM OSS
Key Features — Sony FE 100-400mm F4.5–5.6 GM OSS
100–400mm Telephoto Zoom: Covers a versatile telephoto range suited to wildlife, sports, aviation, and other subjects requiring significant reach.
Sony G Master Optics: Part of Sony's premium G Master lineup, built to deliver high resolution and smooth bokeh across the full zoom range.
f/4.5–5.6 Maximum Aperture: Provides useful light-gathering capability across the zoom range for shooting in variable or low-light conditions.
Built-In OSS Stabilization: Optical SteadyShot helps counteract camera shake during handheld shooting, particularly important at the 400mm end of the range.
Dual Linear AF Motors: Two linear motors drive fast, precise, and near-silent autofocus performance suitable for tracking fast-moving subjects.
Focus Hold & AF/MF Switch: Dedicated focus hold button and AF/MF switch enable quick transitions between auto and manual focus operation in the field.
Lens Specifications — Sony FE 100-400mm F4.5–5.6 GM OSS
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Sports, Birding, Travel, Adventure |
| Lens Type | Zoom |
| Format | Full Frame |
| Zoom/Prime | Zoom |
| Focal Length | 100–400mm |
| Maximum Aperture | f/4.5 |
| Camera System | Mirrorless |
| Lens Mount | Sony E |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | Optical (OIS) |
| Filter Thread | 77mm |
Description — Sony FE 100-400mm F4.5–5.6 GM OSS
The Sony FE 100-400mm F/4.5–5.6 GM OSS is a telephoto zoom lens built natively for the Sony E-mount mirrorless system. It covers a focal length range of 100mm to 400mm, making it well-suited for sports, wildlife, and any subject that demands serious reach. The lens opens to a maximum aperture of f/4.5, offering meaningful light-gathering capability at the shorter end of the zoom range. Optical image stabilization is integrated into the lens design, helping photographers achieve sharper results when shooting handheld at longer focal lengths.
Both autofocus and manual focus are supported, giving users full flexibility over how they engage with their subject. The 77mm filter thread provides compatibility with a wide selection of standard photographic filters. Designed for full-frame mirrorless use, the lens delivers full coverage on Sony's full-frame E-mount bodies and is also usable on APS-C E-mount cameras.
At 1,395g, this is a substantial lens that reflects the optical demands of a full-frame telephoto zoom at this focal length range.
Pros — Sony FE 100-400mm F4.5–5.6 GM OSS
- ✓Wide telephoto zoom range of 100–400mm covers a broad spectrum of telephoto shooting scenarios
- ✓Maximum aperture of f/4.5 offers useful light collection at the shorter end of the zoom range
- ✓Built-in optical image stabilization helps maintain sharpness during handheld telephoto shooting
Cons — Sony FE 100-400mm F4.5–5.6 GM OSS
- ✗At 1,395g, the lens is heavy and may require additional support for extended handheld use
- ✗Maximum aperture narrows across the zoom range, starting at f/4.5 and reaching f/5.6 at 400mm
- ✗No specifications indicate weather sealing, which may be a concern for outdoor telephoto use
Reviews — Sony FE 100-400mm F4.5–5.6 GM OSS
- Sony FE 100-400mm f/4.5-5.6 Review
Photography Life · 2016-01-01 - Sony FE 100-400mm f/4.5-5.6 G Master OSS review
Digital Camera World · 2016-01-01 - Sony FE 100-400mm F4.5-5.6 GM OSS Review
Photography Blog · 2016-01-01 - Fstoppers Reviews the Sony FE 100-400mm f/4.5-5.6 GM OSS Lens
Fstoppers · 2016-01-01 - The Lens I Regret Not Buying SOONER!
Sightseeing Stan - Sony FE 100-400mm f/4.5-5.6 GM OSS w/ 1.4x tele Review on African Safari
PhotoRec TV
Videos — Sony FE 100-400mm F4.5–5.6 GM OSS
Sony FE 100-400mm f/4.5-5.6 GM OSS lens review with samples — Christopher Frost
Frequently Asked Questions — Sony FE 100-400mm F4.5–5.6 GM OSS
What camera mount does this lens use?+
This lens is built for the Sony E-mount, making it compatible with Sony's mirrorless camera lineup. It is designed for full-frame sensors but can also be used on APS-C Sony E-mount bodies.
Does this lens have image stabilization?+
Yes, the lens features optical image stabilization, which helps reduce the effects of camera shake during handheld shooting at longer focal lengths within the 100–400mm range.
What filter size does this lens accept?+
The lens has a 77mm filter thread, which is a common size that makes it easy to find compatible polarizing filters, ND filters, and other accessories.
Does this lens support autofocus?+
Yes, the lens supports both autofocus and manual focus. This gives photographers the flexibility to use AF for fast-moving subjects or switch to manual focus for more precise control.
How heavy is this lens?+
The lens weighs 1,395g, which is considerable for handheld use over long periods. Photographers shooting at 400mm may want to consider using a monopod or tripod for additional support.
Is this lens suitable for full-frame cameras?+
Yes, the lens is designed for full-frame mirrorless cameras with a Sony E-mount. It can also be mounted on APS-C Sony E-mount bodies, where it will cover the full sensor area.









