Sony FE 100-400mm f/4.5-5.6 GM OSS vs Sony FE 70-200mm f/2.8 GM OSS II
The bottom line
Similar coverage, different speed: the Sony FE 70-200mm f/2.8 GM OSS II opens to f/2.8 versus the Sony FE 100-400mm f/4.5-5.6 GM OSS's f/4.5 — more light and shallower background blur. The Sony FE 100-400mm f/4.5-5.6 GM OSS gives that up to stay cheaper ($2,499). It comes down to how much you value that extra brightness.
Choose the Sony FE 100-400mm f/4.5-5.6 GM OSS if…
- ✓You need more reach — it goes to 400mm vs 200mm for distant subjects, wildlife and sport.
Choose the Sony FE 70-200mm f/2.8 GM OSS II if…
- ✓You want more light and background blur — f/2.8 is faster than f/4.5, better for low light and subject separation.
- ✓You shoot wide — it starts at 70mm vs 100mm for landscapes, interiors and architecture.
- ✓You value portability — at 1045g (2.30 lb) it's lighter than the 1395g (3.08 lb) alternative for travel and all-day carry.
- ✓You use filters or shoot video — internal zoom keeps length and balance constant.
Where they differ
- ›Aperture: the Sony FE 70-200mm f/2.8 GM OSS II opens to f/2.8 vs the Sony FE 100-400mm f/4.5-5.6 GM OSS's f/4.5 — more light and shallower depth-of-field.
- ›Focal range: Sony FE 100-400mm f/4.5-5.6 GM OSS is 100-400mm, Sony FE 70-200mm f/2.8 GM OSS II is 70-200mm — different framing and reach.
- ›Price: the Sony FE 100-400mm f/4.5-5.6 GM OSS is $2,499, $300 under the Sony FE 70-200mm f/2.8 GM OSS II.
- ›Weight: the Sony FE 70-200mm f/2.8 GM OSS II is 1045g (2.30 lb) vs 1395g (3.08 lb) — you'll feel the difference handheld.
Frequently asked
Is the Sony FE 100-400mm f/4.5-5.6 GM OSS or the Sony FE 70-200mm f/2.8 GM OSS II better?
Similar coverage, different speed: the Sony FE 70-200mm f/2.8 GM OSS II opens to f/2.8 versus the Sony FE 100-400mm f/4.5-5.6 GM OSS's f/4.5 — more light and shallower background blur. The Sony FE 100-400mm f/4.5-5.6 GM OSS gives that up to stay cheaper ($2,499). It comes down to how much you value that extra brightness.
Who should choose the Sony FE 100-400mm f/4.5-5.6 GM OSS?
Choose the Sony FE 100-400mm f/4.5-5.6 GM OSS if you need more reach — it goes to 400mm vs 200mm for distant subjects, wildlife and sport.
Who should choose the Sony FE 70-200mm f/2.8 GM OSS II?
Choose the Sony FE 70-200mm f/2.8 GM OSS II if you want more light and background blur — f/2.8 is faster than f/4.5, better for low light and subject separation. Choose it if you shoot wide — it starts at 70mm vs 100mm for landscapes, interiors and architecture. Choose it if you value portability — at 1045g (2.30 lb) it's lighter than the 1395g (3.08 lb) alternative for travel and all-day carry. Choose it if you use filters or shoot video — internal zoom keeps length and balance constant.
What is the main difference between the Sony FE 100-400mm f/4.5-5.6 GM OSS and the Sony FE 70-200mm f/2.8 GM OSS II?
Aperture: the Sony FE 70-200mm f/2.8 GM OSS II opens to f/2.8 vs the Sony FE 100-400mm f/4.5-5.6 GM OSS's f/4.5 — more light and shallower depth-of-field.
| Product | ||
|---|---|---|
| Optical Design | ||
| Focal Length | 100-400mm | 70-200mm |
| Lens Type | Zoom | Zoom |
| Optical Elements | 22 | 17 |
| Optical Groups | 16 | 14 |
| Aperture & Iris | ||
| Maximum Aperture | f/4.5 | f/2.8 |
| Minimum Aperture | f/32 | 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 | 24° – 6.2° | 34° – 12.5° |
| 35mm Equivalent | − | − |
| Focus | ||
| Autofocus | Yes | Yes |
| Focus Motor | DDSSM | XD Linear |
| Focus Limiter | Yes | Yes |
| AF/MF Switch | Yes | Yes |
| Min Focus Distance | 98 cm | 40 cm |
| Max Magnification | 0.35x | 0.3x |
| Stabilization & Video | ||
| Optical Stabilization | Yes | Yes |
| Aperture Ring | No | Yes |
| Declickable Aperture | No | Yes |
| Parfocal | No | No |
| Internal Zoom | No | Yes |
| General | ||
| Price (MSRP) | $2,499 | $2,799 |
| Filter Size | 77mm | 77mm |
| Diameter | 93.9mm | 88mm |
| Length | 205mm | 200mm |
| Weight | 1395g (3.08 lb) | 1045g (2.30 lb) |
| Weather Sealed | Yes | Yes |
| Tripod Collar | Yes | Yes |
