Fujifilm XF 18-55mm f/2.8-4 R LM OIS vs Sigma 18-50mm f/2.8 DC DN Contemporary

Both are Fujifilm X mount zooms for everyday 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 · Fujifilm X mount · prices change — check the retailer

Spec	Fujifilm XF 18-55mm f/2.8-4 R LM OIS	Sigma 18-50mm f/2.8 DC DN Contemporary
Focal length	18-55mm	18-50mm
Max aperture	f/2.8-4	f/2.8
Type	zoom	zoom
Coverage	APS-C	APS-C
Mount	Fujifilm X	Fujifilm X

Which should you buy?

the Fujifilm XF 18-55mm f/2.8-4 R LM OIS covers 18-55mm and the Sigma 18-50mm f/2.8 DC DN Contemporary covers 18-50mm — pick the range that matches what you shoot
the Fujifilm XF 18-55mm f/2.8-4 R LM OIS is first-party (Fujifilm) for guaranteed full autofocus and in-camera corrections; the Sigma 18-50mm f/2.8 DC DN Contemporary is third-party — usually the value pick

Where to buy

Fujifilm Fujinon XF18-55mmF2.8-4 R LM OIS

Fujifilm XF 18-55mm f/2.8-4 R LM OISSee 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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Sigma 18-50mm f/2.8 DC DN ContemporarySee price on Amazon

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FAQ

What's the difference between the Fujifilm XF 18-55mm f/2.8-4 R LM OIS and the Sigma 18-50mm f/2.8 DC DN Contemporary?
The Fujifilm XF 18-55mm f/2.8-4 R LM OIS is 18-55mm f/2.8-4 zoom, APS-C; the Sigma 18-50mm f/2.8 DC DN Contemporary is 18-50mm f/2.8 zoom, APS-C. Both fit the Fujifilm X mount.

Do the Fujifilm XF 18-55mm f/2.8-4 R LM OIS and Sigma 18-50mm f/2.8 DC DN 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/1.4 R vs Fujifilm XF 35mm f/2 R WR · Fujifilm XF 56mm f/1.2 R WR vs Viltrox AF 56mm f/1.4 · Fujifilm XF 18-55mm f/2.8-4 R LM OIS vs Fujifilm XF 16-50mm f/2.8-4.8 R LM WR · Fujifilm XF 18-55mm f/2.8-4 R LM OIS vs Fujifilm XF 18-120mm f/4 LM PZ WR · all Fujifilm X lenses · all comparisons

Sigma 18-50mm f/2.8 DC DN ContemporaryAffiliate linkSee price on Amazon