Sony FE 100-400mm f/4.5-5.6 GM OSS vs Sony FE 100-400mm f/4.5 GM OSS

Both are Sony E mount zooms 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 100-400mm f/4.5-5.6 GM OSS	Sony FE 100-400mm f/4.5 GM OSS
Focal length	100-400mm	100-400mm
Max aperture	f/4.5-5.6	f/4.5
Type	zoom	zoom
Coverage	full-frame	full-frame
Mount	Sony E	Sony E

Which should you buy?

Where to buy

Sony FE 100-400mm f/4.5-5.6 GM OSSSee price on Amazon

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Sony FE 100-400mm f/4.5 GM OSSSee price on Amazon

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FAQ

What's the difference between the Sony FE 100-400mm f/4.5-5.6 GM OSS and the Sony FE 100-400mm f/4.5 GM OSS?
The Sony FE 100-400mm f/4.5-5.6 GM OSS is 100-400mm f/4.5-5.6 zoom, full-frame; the Sony FE 100-400mm f/4.5 GM OSS is 100-400mm f/4.5 zoom, full-frame. Both fit the Sony E mount.

Do the Sony FE 100-400mm f/4.5-5.6 GM OSS and Sony FE 100-400mm f/4.5 GM 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 18-50mm f/2.8 DC DN Contemporary vs Sony E PZ 16-50mm f/3.5-5.6 OSS · Sony E 16-55mm f/2.8 G vs Sony E PZ 16-50mm f/3.5-5.6 OSS · Sony FE 16-25mm f/2.8 G vs Sony FE 12-24mm f/4 G · Sony FE 24-105mm f/4 G OSS vs Sony FE 28-70mm f/2 GM · all Sony E lenses · all comparisons

Sony FE 100-400mm f/4.5-5.6 GM OSSAffiliate linkSee price on Amazon