Sony FE 100-400mm F4.5 GM OSS
Sony · 100–400 mm · f/4.5 · GM · Image Stabilization
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What We Like
+Constant F4.5 aperture throughout entire zoom range - unique in mirrorless 400mm telephoto segment
+Exceptional sharpness and G Master optical quality with advanced ED glass elements
+Fast and precise autofocus with four XD motors and 3x speed improvement over predecessor
+Internal zoom and focus design with lightweight 1,840g weight for handheld shooting versatility
+Excellent teleconverter compatibility (1.4x and 2x) maintaining strong optical performance
+Comprehensive professional controls including customizable buttons and adjustable zoom tension
Worth Knowing
−Significantly more expensive at $4,299 compared to predecessor at ~$2,700
−Large physical size (328mm length) makes it less portable than older variable aperture model
−Requires 95mm filters which are expensive; drop-in filter holder uses smaller 40.5mm glass as alternative
−Heavier and bulkier than typical 100-400mm lenses, offset against its performance gains
General | |
|---|---|
About This LensThis exemplary 100-400mm super-telephoto zoom lens is ideal for wildlife, birds, sports, photojournalism and more, with constant F4.5 aperture and a lightweight inner-zoom design resulting in stress-free handling. The lens delivers exceptional resolution and bokeh that define the G Master series, with autofocus up to approximately 3x faster than the FE 100-400mm F4.5-5.6 GM OSS. This new Sony FE 100-400mm F4.5 GM OSS offers the best image quality of any zoom covering these focal lengths, a cut above the performance of all variable aperture zooms. | |
| Brand | Sony |
| Release Year | 2026 |
Production Status ⓘCurrent status of lens manufacturing (e.g., in production, discontinued). |  In Production |
Pro Branding ⓘSpecific branding codes used for professional-tier lenses. | GM |
Lens Mount ⓘThe lens mount will tell you what type of lens range you can fit onto the camera body. Often the same camera company will have different lens ranges for different cameras. | Sony E |
System ⓘIndicates which camera system the lens is designed to attach to. | Sony E |
Maximum Format ⓘLargest sensor size compatible with the lens. |  Full Frame |
Physical | |
| Lens Weight | 1840 g |
Lens Diameter ⓘWidth of the lens at its widest point | 95 mm |
Lens Length ⓘHow long the lens is from front to back. | 328 mm |
Front Filter Compatible ⓘSome lenses are compatible with front filters, some are compatible with back filters and some are compatible with both. Front filters are usually more convenient to add and remove. |  Yes |
Front Filter Size ⓘDiameter of attachable filters. | 95 mm |
Optics | |
Focal Range ⓘShortest to longest focal length of the lens (zoom range start - end ) | 100–400 mm |
Aperture Range ⓘLargest aperture at the lens's shortest focal length to longest focal length (aperture range start - end) | 4.5 |
| Focal Length Angle of View | 24°–6.19° |
Flange Focal Distance ⓘDistance from lens mount to sensor. | 18 mm |
Diaphragm Type ⓘStructure and design of the aperture |  Automatic |
Blades ⓘNumber of diaphragm blades in aperture | 11020 |
Zoom Lens ⓘZoom allows you to vary the focal length, change between long shots and close-ups |  Yes |
Zoom Mechanism ⓘSystem enabling zoom function |  Manual |
Zoom Ring ⓘIf zooming is adjusted using a zoom ring |  Yes |
Zoom Type ⓘThe design or approach to zooming |  Rotary |
Closest Focusing Distance ⓘMinimum distance for a subject to be in focus. | 64 cm01500 |
Maximum Magnification ⓘLargest size a subject can be reproduced | 0.25x |
| Autofocus Mode |  Yes |
| Manual Mode |  Yes |
| Manual Focusing Ring |  Yes |
Features | |
Weather Sealing ⓘWeather sealing capabilities will give you more confidence when shooting in unfavourable conditions. |  Yes |
Fluorine Coating ⓘCoating to repel water and oil from lens elements. |  Yes |
| Built In Lens Hood | No |
Zoom Lock ⓘZoom lock allows the zoom ring to be locked at the desired focal length | No |
Teleconverter ⓘA teleconverter (extender) is an extra piece of equipment that fits between the lens and the camera body to enhance magnification |  Yes |
| Image Stabilization | Yes |
Construction | |
Elements ⓘLens elements refer to individual pieces of glass within the lens. | 28 |
| Groups | 20 |
Bi Aspherical Elements ⓘElements with two non-spherical surfaces | 0 |
Low Dispersion ⓘElements that reduce chromatic aberration | 3 |
Super Low Dispersion ⓘAdvanced elements further reducing chromatic aberration | 2 |
CA Reduction ⓘBuilt-in features to reduce chromatic aberration | 0 |
Internal Focusing ⓘInternal Focusing means that the lens does not change in size during focusing, and the front element does not rotate. |  Yes |