Sony FE 70-200mm f/4 G OSS vs Sony FE 400-800mm f/6.3-8 G OSS

Both are Sony E mount zooms for telephoto and sports & action — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-09-01 · Sony E mount · prices change — check the retailer

Spec	Sony FE 70-200mm f/4 G OSS	Sony FE 400-800mm f/6.3-8 G OSS
Focal length	70-200mm	400-800mm
Max aperture	f/4	f/6.3-8
Type	zoom	zoom
Coverage	full-frame	full-frame
Mount	Sony E	Sony E

Which should you buy?

the Sony FE 70-200mm f/4 G OSS opens wider (f/4) — brighter in low light and more background blur
the Sony FE 70-200mm f/4 G OSS covers 70-200mm and the Sony FE 400-800mm f/6.3-8 G OSS covers 400-800mm — pick the range that matches what you shoot

Where to buy

Sony FE 70-200mm F4 G OSS Interchangeable Lens for Sony (White/Black)

Sony FE 70-200mm f/4 G OSSSee price on Amazon Amazon has no new-stock listing for this one right now — this button runs an Amazon search for it rather than opening a product page.

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Sony FE 400-800mm f/6.3-8 G OSSSee price on Amazon

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FAQ

What's the difference between the Sony FE 70-200mm f/4 G OSS and the Sony FE 400-800mm f/6.3-8 G OSS?
The Sony FE 70-200mm f/4 G OSS is 70-200mm f/4 zoom, full-frame; the Sony FE 400-800mm f/6.3-8 G OSS is 400-800mm f/6.3-8 zoom, full-frame. Both fit the Sony E mount.

Which is better in low light, the Sony FE 70-200mm f/4 G OSS or the Sony FE 400-800mm f/6.3-8 G OSS?
The Sony FE 70-200mm f/4 G OSS — its f/4 maximum aperture lets in more light and gives more background blur than the f/6.3-8 of the other.

Do the Sony FE 70-200mm f/4 G OSS and Sony FE 400-800mm f/6.3-8 G OSS fit the same camera?
Yes — both are Sony E mount lenses, so they fit Sony a7/a9/a1 (full-frame) and a6000-series (APS-C).

Citing these specs? Go ahead — manufacturer data, last verified 2026-09-01. Copy a ready-made reference:

More Sony E comparisons: Sigma 14-24mm f/2.8 DG DN Art vs Sony FE 16-35mm f/2.8 GM II · Sony FE 24-70mm f/2.8 GM II vs Tamron 17-70mm f/2.8 Di III-A VC RXD · Sony FE 70-200mm f/4 G OSS vs Tamron 50-300mm f/4.5-6.3 Di III VC VXD · Sony Sonnar T* FE 35mm f/2.8 ZA vs Yongnuo YN 35mm f/2S DF DSM · all Sony E lenses · all comparisons

Sony FE 400-800mm f/6.3-8 G OSSAffiliate linkSee price on Amazon