Sony G 70-400mm f/4-5.6 SSM II Lens
The Sony SAL70400G2 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 f/4-5.6 SSM II Lens
Get notified when one lists.
We'll text or email you the moment a Sony G 70-400mm f/4-5.6 SSM II Lens is listed on GearFocus.
Have a Sony SAL70400G2 sitting in your bag?
You'd be the first listing for this model.
Serious buyers are already watching — list yours in minutes.
Available Now on GearFocus
Lens Overview — Sony SAL70400G2
Key Features — Sony SAL70400G2
70-400mm Telephoto Zoom: Covers a broad telephoto range in a single lens, useful for wildlife, sports, and aviation photography where variable working distances are common.
Sony A-Mount Compatibility: Designed for Sony's A-mount DSLR system, fitting bodies such as the Alpha 99 and Alpha 77 series.
Full-Frame Coverage: Covers a full 35mm image circle, making it compatible with both full-frame and APS-C Sony A-mount bodies without vignetting.
f/4-5.6 Variable Aperture: Opens to f/4 at 70mm, providing reasonable light gathering at shorter focal lengths before transitioning to f/5.6 at 400mm.
SSM II Autofocus: Super Sonic Motor drive delivers fast, quiet autofocus tracking well-suited to moving subjects in sports and wildlife shooting.
Auto/Manual Focus Modes: Supports both autofocus and full manual focus control for flexible operation across different shooting scenarios.
Lens Specifications — Sony SAL70400G2
| Spec | Detail |
|---|---|
| Use Cases | Wildlife, Sports, Birding |
| 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 SAL70400G2
The Sony G 70-400mm f/4-5.6 SSM II Lens is a full-frame telephoto zoom built exclusively for the Sony A mount. With a focal length range spanning 70mm to 400mm, it covers everything from moderate telephoto to serious long-range reach. The maximum aperture starts at f/4 at the wide end and adjusts to f/5.6 at full extension.
Both auto and manual focus modes are supported, giving shooters the flexibility to choose what suits the situation. The 77mm filter thread accepts a broad range of accessories, and the lens is classified as a zoom type with a telephoto focal length character. It is worth noting that the specifications confirm no image stabilization is present, so shooters working at longer focal lengths should plan accordingly.
The lens tips the scale at 1500g, making it a physically demanding piece of equipment that benefits from a monopod or tripod in many shooting scenarios.
Pros — Sony SAL70400G2
- ✓Wide telephoto zoom range from 70mm to 400mm covers a broad spectrum of focal lengths in a single lens
- ✓Full-frame coverage means compatibility across Sony A-mount cameras regardless of sensor size
- ✓Supports both auto and manual focus modes for flexible shooting control
Cons — Sony SAL70400G2
- ✗No image stabilization listed in specifications, which may be a drawback when shooting handheld at longer focal lengths
- ✗Variable maximum aperture reaches f/5.6 at 400mm, limiting light intake at maximum reach
- ✗At 1500g, the lens is quite heavy and may require additional support for extended use