Canon RF 16-28mm f/2.8 IS STM vs Sigma 10-18mm f/2.8 DC DN Contemporary

Both are Canon RF mount zooms for wide-angle and vlogging — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.

Last verified 2026-09-01 · Canon RF mount · prices change — check the retailer

Spec	Canon RF 16-28mm f/2.8 IS STM	Sigma 10-18mm f/2.8 DC DN Contemporary
Focal length	16-28mm	10-18mm
Max aperture	f/2.8	f/2.8
Type	zoom	zoom
Coverage	full-frame	APS-C
Mount	Canon RF	Canon RF

Which should you buy?

the Canon RF 16-28mm f/2.8 IS STM covers 16-28mm and the Sigma 10-18mm f/2.8 DC DN Contemporary covers 10-18mm — pick the range that matches what you shoot
the Canon RF 16-28mm f/2.8 IS STM covers full-frame (also works on APS-C bodies); the Sigma 10-18mm f/2.8 DC DN Contemporary is APS-C-only — it won't fill a full-frame sensor
the Canon RF 16-28mm f/2.8 IS STM is first-party (Canon) for guaranteed full autofocus and in-camera corrections; the Sigma 10-18mm f/2.8 DC DN Contemporary is third-party — usually the value pick

Where to buy

Canon RF 16-28mm f/2.8 IS STMSee price on Amazon

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

Sigma 10-18mm f/2.8 DC DN 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 Canon RF 16-28mm f/2.8 IS STM and the Sigma 10-18mm f/2.8 DC DN Contemporary?
The Canon RF 16-28mm f/2.8 IS STM is 16-28mm f/2.8 zoom, full-frame; the Sigma 10-18mm f/2.8 DC DN Contemporary is 10-18mm f/2.8 zoom, APS-C. Both fit the Canon RF mount.

Do the Canon RF 16-28mm f/2.8 IS STM and Sigma 10-18mm f/2.8 DC DN Contemporary fit the same camera?
Yes — both are Canon RF mount lenses, so they fit Canon EOS R series (full-frame R5/R6/R8) and APS-C (R7/R10/R50). Note the Sigma 10-18mm f/2.8 DC DN Contemporary is APS-C-only and won't fill a full-frame sensor.

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

More Canon RF comparisons: Canon RF 14-35mm f/4 L IS USM vs Canon RF 16-28mm f/2.8 IS STM · Canon RF 15-35mm f/2.8 L IS USM vs Canon RF 10-20mm f/4 L IS STM · Canon RF 24-70mm f/2.8 L IS USM vs Canon RF 24-105mm f/2.8 L IS USM · Canon RF 24-70mm f/2.8 L IS USM vs Tamron 17-70mm f/2.8 Di III-A VC RXD · all Canon RF lenses · all comparisons

Canon RF 16-28mm f/2.8 IS STMAffiliate linkSee price on Amazon