Sony FE 70-200mm f/4 G OSS vs Tamron 50-300mm f/4.5-6.3 Di III VC VXD

Both are Sony E mount zooms for telephoto and travel — 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	Tamron 50-300mm f/4.5-6.3 Di III VC VXD
Focal length	70-200mm	50-300mm
Max aperture	f/4	f/4.5-6.3
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 Tamron 50-300mm f/4.5-6.3 Di III VC VXD covers 50-300mm — pick the range that matches what you shoot
the Sony FE 70-200mm f/4 G OSS is first-party (Sony) for guaranteed full autofocus and in-camera corrections; the Tamron 50-300mm f/4.5-6.3 Di III VC VXD is third-party — usually the value pick

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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Tamron 50-300mm F/4.5-6.3 Di III VC VXD for Sony E Mount Full Frame Mirrorless Cameras

Tamron 50-300mm f/4.5-6.3 Di III VC VXDSee price on Amazon

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FAQ

What's the difference between the Sony FE 70-200mm f/4 G OSS and the Tamron 50-300mm f/4.5-6.3 Di III VC VXD?
The Sony FE 70-200mm f/4 G OSS is 70-200mm f/4 zoom, full-frame; the Tamron 50-300mm f/4.5-6.3 Di III VC VXD is 50-300mm f/4.5-6.3 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 Tamron 50-300mm f/4.5-6.3 Di III VC VXD?
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/4.5-6.3 of the other.

Do the Sony FE 70-200mm f/4 G OSS and Tamron 50-300mm f/4.5-6.3 Di III VC VXD 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:

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Tamron 50-300mm f/4.5-6.3 Di III VC VXDAffiliate linkSee price on Amazon