Fujifilm XF 50-140mm f/2.8 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 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 · Fujifilm X mount · prices change — check the retailer

Spec	Fujifilm XF 50-140mm f/2.8 R LM OIS WR	Sigma 100-400mm f/5-6.3 DG DN OS Contemporary
Focal length	50-140mm	100-400mm
Max aperture	f/2.8	f/5-6.3
Type	zoom	zoom
Coverage	APS-C	APS-C
Mount	Fujifilm X	Fujifilm X

Which should you buy?

the Fujifilm XF 50-140mm f/2.8 R LM OIS WR opens wider (f/2.8) — brighter in low light and more background blur
the Fujifilm XF 50-140mm f/2.8 R LM OIS WR covers 50-140mm 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 50-140mm f/2.8 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 XF 50-140mm f/2.8 R LM OIS WRSee price on Amazon

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

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 50-140mm f/2.8 R LM OIS WR and the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary?
The Fujifilm XF 50-140mm f/2.8 R LM OIS WR is 50-140mm f/2.8 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 50-140mm f/2.8 R LM OIS WR or the Sigma 100-400mm f/5-6.3 DG DN OS Contemporary?
The Fujifilm XF 50-140mm f/2.8 R LM OIS WR — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/5-6.3 of the other.

Do the Fujifilm XF 50-140mm f/2.8 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 35mm f/2 R WR vs Fujifilm XF 50mm f/2 R WR · Fujifilm XF 16-80mm f/4 R OIS WR vs Fujifilm XF 18-55mm f/2.8-4 R LM OIS · Fujifilm XF 50mm f/2 R WR vs TTArtisan AF 27mm f/2.8 X · Fujifilm XF 56mm f/1.2 R WR vs Fujifilm XF 90mm f/2 R LM WR · all Fujifilm X lenses · all comparisons

Fujifilm XF 50-140mm f/2.8 R LM OIS WRAffiliate linkSee price on Amazon