Sony FE 400mm f/2.8 GM OSS vs Sigma 200mm f/2 DG OS Sports

Both are Sony E mount primes for sports & action and telephoto — 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 400mm f/2.8 GM OSS	Sigma 200mm f/2 DG OS Sports
Focal length	400mm	200mm
Max aperture	f/2.8	f/2
Type	prime	prime
Coverage	full-frame	full-frame
Mount	Sony E	Sony E

Which should you buy?

the Sigma 200mm f/2 DG OS Sports opens wider (f/2) — brighter in low light and more background blur
the Sigma 200mm f/2 DG OS Sports (200mm) is wider — more in the frame for street and interiors; the Sony FE 400mm f/2.8 GM OSS (400mm) is tighter — more reach and compression for portraits
the Sony FE 400mm f/2.8 GM OSS is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Sigma 200mm f/2 DG OS Sports is third-party — usually the value pick

Where to buy

Sony FE 400mm f/2.8 GM OSSSee price on Amazon

Amazon links are affiliate links — we may earn a commission at no extra cost to you.

Sigma 200mm F2 DG OS | Sports Lens for Sony E | HLA Linear Motor, 6.5-Stop Image Stabilization, Tripod Socket, Ideal for

Sigma 200mm f/2 DG OS SportsSee price on Amazon

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which lenses we compare.

FAQ

What's the difference between the Sony FE 400mm f/2.8 GM OSS and the Sigma 200mm f/2 DG OS Sports?
The Sony FE 400mm f/2.8 GM OSS is 400mm f/2.8 prime, full-frame; the Sigma 200mm f/2 DG OS Sports is 200mm f/2 prime, full-frame. Both fit the Sony E mount.

Which is better in low light, the Sony FE 400mm f/2.8 GM OSS or the Sigma 200mm f/2 DG OS Sports?
The Sigma 200mm f/2 DG OS Sports — its f/2 maximum aperture lets in more light and gives more background blur than the f/2.8 of the other.

Do the Sony FE 400mm f/2.8 GM OSS and Sigma 200mm f/2 DG OS Sports 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 18-50mm f/2.8 DC DN Contemporary vs Sony E 16-55mm f/2.8 G · Sigma 30mm f/1.4 DC DN Contemporary vs Sony FE 35mm f/1.4 GM · Sony FE 600mm f/4 GM OSS vs Sigma 200mm f/2 DG OS Sports · Yongnuo YN 50mm f/1.8S DA DSM II vs Sigma 65mm f/2 DG DN Contemporary · all Sony E lenses · all comparisons

Sony FE 400mm f/2.8 GM OSSAffiliate linkSee price on Amazon