Sony G 70-400mm F4-5.6 SSM
The Sony 70-400mm f/4-5.6 SSM is a 70–400mm f/4 lens designed for Sony A mount cameras. Check GearFocus for current availability, with buyer protection on every purchase.

Sony G 70-400mm F4-5.6 SSM
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Lens Overview — Sony 70-400mm f/4-5.6 SSM
Key Features — Sony 70-400mm f/4-5.6 SSM
70-400mm Telephoto Zoom Range: Covers a versatile range from short telephoto to 400mm, making it suitable for wildlife, sports, and distant subjects without changing lenses.
Sony A-Mount Full-Frame: Designed specifically for Sony's A-mount system, it delivers full image circle coverage on full-frame bodies and is also compatible with A-mount APS-C cameras.
f/4-5.6 Maximum Aperture: Opens to f/4 at the wide end and f/5.6 at 400mm, providing reasonable light gathering for an extended telephoto zoom of this range.
SSM Autofocus Motor: Sony's Super Sonic wave Motor (SSM) delivers fast, quiet autofocus performance, which is beneficial when tracking moving subjects.
Auto and Manual Focus: Supports both autofocus and full-time manual focus override, giving shooters precise control when the situation calls for it.
Sony G Lens Optics: Built to Sony's G-series optical standards, the lens is designed to deliver high sharpness, contrast, and color rendering across its zoom range.
Lens Specifications — Sony 70-400mm f/4-5.6 SSM
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Sports, Birding, Adventure |
| Lens Type | Zoom |
| Format | Full Frame |
| Zoom/Prime | Zoom |
| Focal Length | 70–400mm |
| Maximum Aperture | f/4 |
| Camera System | DSLR |
| Lens Mount | Sony A |
| Autofocus | Yes |
| Focus Type | Auto, Manual |
| Image Stabilization | None |
| Filter Thread | 77mm |
Description — Sony 70-400mm f/4-5.6 SSM
The Sony G 70-400mm f/4-5.6 SSM is a full-frame telephoto zoom lens designed for the Sony A-mount DSLR system. With a focal length range spanning 70mm to 400mm, it covers a broad telephoto reach well-suited to photographing distant subjects across a variety of scenarios. The lens offers a maximum aperture of f/4 at the wide end, stepping down to f/5.6 at 400mm.
Both autofocus and manual focus are supported, providing versatility for different shooting styles. A 77mm filter thread makes it straightforward to pair with popular filter sizes. At 1500g, the lens has a substantial build appropriate for its focal range.
It is worth noting that no image stabilization is included, so photographers will want to be mindful of shutter speed and support options, especially when shooting at the longer end of the zoom range. This is a zoom type lens classified within the telephoto focal length range, purpose-built for the Sony A-mount DSLR ecosystem.
Pros — Sony 70-400mm f/4-5.6 SSM
- ✓Wide telephoto zoom range from 70mm to 400mm (minFocalLength: 70, maxFocalLength: 400) provides excellent reach for distant subjects
- ✓Full-frame compatible (lensFormat: Full Frame), making it suitable for use on Sony A-mount full-frame bodies
- ✓Supports both autofocus and manual focus (focusType: Auto, Manual) for shooting flexibility
Cons — Sony 70-400mm f/4-5.6 SSM
- ✗No image stabilization (imageStabilization: None), which can be a challenge at longer focal lengths without a steady support
- ✗At 1500g (weight: 1500g), this lens is quite heavy and may require additional support for extended handheld use
- ✗Variable aperture reaching f/5.6 at 400mm limits light intake at the longest focal lengths
Videos — Sony 70-400mm f/4-5.6 SSM
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