Sony FE 300mm f/2.8 GM OSS vs Sony FE 400mm f/2.8 GM OSS
The bottom line
These cover different focal lengths — the Sony FE 300mm f/2.8 GM OSS is 300mm, the Sony FE 400mm f/2.8 GM OSS is 400mm — so they're not really substitutes. Pick by the field of view you actually need: the Sony FE 300mm f/2.8 GM OSS for super-telephoto, the Sony FE 400mm f/2.8 GM OSS for super-telephoto.
Choose the Sony FE 300mm f/2.8 GM OSS if…
- ✓You're on a budget — $5,999 vs $11,999 leaves more for other gear.
- ✓You value portability — at 1470g (3.24 lb) it's lighter than the 2895g (6.38 lb) alternative for travel and all-day carry.
- ✓You like close-focus work — 0.36x magnification vs 0.17x.
Choose the Sony FE 400mm f/2.8 GM OSS if…
- ✓You need more reach — it goes to 400mm vs 300mm for distant subjects, wildlife and sport.
Where they differ
- ›Focal range: Sony FE 300mm f/2.8 GM OSS is 300mm, Sony FE 400mm f/2.8 GM OSS is 400mm — different framing and reach.
- ›Price: the Sony FE 300mm f/2.8 GM OSS is $5,999, $6,000 under the Sony FE 400mm f/2.8 GM OSS.
- ›Weight: the Sony FE 300mm f/2.8 GM OSS is 1470g (3.24 lb) vs 2895g (6.38 lb) — you'll feel the difference handheld.
Frequently asked
Is the Sony FE 300mm f/2.8 GM OSS or the Sony FE 400mm f/2.8 GM OSS better?
These cover different focal lengths — the Sony FE 300mm f/2.8 GM OSS is 300mm, the Sony FE 400mm f/2.8 GM OSS is 400mm — so they're not really substitutes. Pick by the field of view you actually need: the Sony FE 300mm f/2.8 GM OSS for super-telephoto, the Sony FE 400mm f/2.8 GM OSS for super-telephoto.
Who should choose the Sony FE 300mm f/2.8 GM OSS?
Choose the Sony FE 300mm f/2.8 GM OSS if you're on a budget — $5,999 vs $11,999 leaves more for other gear. Choose it if you value portability — at 1470g (3.24 lb) it's lighter than the 2895g (6.38 lb) alternative for travel and all-day carry. Choose it if you like close-focus work — 0.36x magnification vs 0.17x.
Who should choose the Sony FE 400mm f/2.8 GM OSS?
Choose the Sony FE 400mm f/2.8 GM OSS if you need more reach — it goes to 400mm vs 300mm for distant subjects, wildlife and sport.
What is the main difference between the Sony FE 300mm f/2.8 GM OSS and the Sony FE 400mm f/2.8 GM OSS?
Focal range: Sony FE 300mm f/2.8 GM OSS is 300mm, Sony FE 400mm f/2.8 GM OSS is 400mm — different framing and reach.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 300mm | 400mm |
| Lens Type | Prime | Prime |
| Optical Elements | 20 | 23 |
| Optical Groups | 16 | 17 |
| Aperture & Iris | ||
| Maximum Aperture | f/2.8 | f/2.8 |
| Minimum Aperture | f/22 | f/22 |
| Aperture Blades | 11 | 11 |
| Rounded Aperture | Yes | Yes |
| Coverage & Angle | ||
| Format Coverage | Full-Frame | Full-Frame |
| Lens Mount | Sony E | Sony E |
| Angle of View | 8° | 6° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | XD Linear | XD Linear |
| Focus Limiter | Yes | Yes |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 200 cm | 250 cm |
| Max Magnification | 0.36x | 0.17x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | Yes |
| Aperture Ring | No | No |
| Declickable Aperture | No | No |
| Parfocal | No | No |
| Internal Zoom | No | No |
| General | ||
| Price (MSRP) | $5,999 | $11,999 |
| Filter Size | 52mm | 40mm |
| Diameter | 163.6mm | 167mm |
| Length | 273mm | 357mm |
| Weight | 1470g (3.24 lb) | 2895g (6.38 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | Yes | Yes |
