Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR vs Sigma 100-400mm f/5-6.3 DG DN OS Contemporary

Both are Fujifilm X mount zooms for telephoto and wildlife — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-09-01 · Fujifilm X mount · prices change — check the retailer

Spec	Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR	Sigma 100-400mm f/5-6.3 DG DN OS Contemporary
Focal length	70-300mm	100-400mm
Max aperture	f/4-5.6	f/5-6.3
Type	zoom	zoom
Coverage	APS-C	APS-C
Mount	Fujifilm X	Fujifilm X

Which should you buy?

the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR opens wider (f/4-5.6) — brighter in low light and more background blur
the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR covers 70-300mm and the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary covers 100-400mm — pick the range that matches what you shoot
the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR is first-party (Fujifilm) for guaranteed full autofocus and in-camera corrections; the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary is third-party — usually the value pick

Where to buy

Fujifilm Fujinon XF70-300mmF4-5.6 LM OIS WR

Fujifilm XF 70-300mm f/4-5.6 R LM OIS WRSee price on Amazon

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Sigma 100-400mm f/5-6.3 DG DN OS ContemporarySee 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 Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR and the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary?
The Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR is 70-300mm f/4-5.6 zoom, APS-C; the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary is 100-400mm f/5-6.3 zoom, APS-C. Both fit the Fujifilm X mount.

Which is better in low light, the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR or the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary?
The Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR — its f/4-5.6 maximum aperture lets in more light and gives more background blur than the f/5-6.3 of the other.

Do the Fujifilm XF 70-300mm f/4-5.6 R LM OIS WR and Sigma 100-400mm f/5-6.3 DG DN OS Contemporary fit the same camera?
Yes — both are Fujifilm X mount lenses, so they fit Fujifilm X-T/X-H/X-Pro/X-E/X-S series (APS-C).

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

More Fujifilm X comparisons: Fujifilm XF 23mm f/2 R WR vs Fujifilm XF 27mm f/2.8 R WR · Fujifilm XF 23mm f/2 R WR vs Viltrox AF 23mm f/1.4 · Fujifilm XF 90mm f/2 R LM WR vs Tokina atx-m 56mm f/1.4 X · Fujifilm XF 90mm f/2 R LM WR vs Fujifilm XF 50mm f/1.0 R WR · all Fujifilm X lenses · all comparisons

Fujifilm XF 70-300mm f/4-5.6 R LM OIS WRAffiliate linkSee price on Amazon