Sigma 10-18mm f/2.8 DC DN Contemporary vs Canon RF 15-30mm f/4.5-6.3 IS STM
Both are Canon RF mount zooms for wide-angle and landscape — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Sigma 10-18mm f/2.8 DC DN Contemporary | Canon RF 15-30mm f/4.5-6.3 IS STM |
|---|---|---|
| Focal length | 10-18mm | 15-30mm |
| Max aperture | f/2.8 | f/4.5-6.3 |
| Type | zoom | zoom |
| Coverage | APS-C | full-frame |
| Mount | Canon RF | Canon RF |
Which should you buy?
- the Sigma 10-18mm f/2.8 DC DN Contemporary opens wider (f/2.8) — brighter in low light and more background blur
- the Sigma 10-18mm f/2.8 DC DN Contemporary covers 10-18mm and the Canon RF 15-30mm f/4.5-6.3 IS STM covers 15-30mm — pick the range that matches what you shoot
- the Canon RF 15-30mm f/4.5-6.3 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 15-30mm f/4.5-6.3 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
Sigma 10-18mm f/2.8 DC DN ContemporarySee price on Amazon
Canon RF 15-30mm f/4.5-6.3 IS STMSee price on Amazon
FAQ
What's the difference between the Sigma 10-18mm f/2.8 DC DN Contemporary and the Canon RF 15-30mm f/4.5-6.3 IS STM?
The Sigma 10-18mm f/2.8 DC DN Contemporary is 10-18mm f/2.8 zoom, APS-C; the Canon RF 15-30mm f/4.5-6.3 IS STM is 15-30mm f/4.5-6.3 zoom, full-frame. Both fit the Canon RF mount.
Which is better in low light, the Sigma 10-18mm f/2.8 DC DN Contemporary or the Canon RF 15-30mm f/4.5-6.3 IS STM?
The Sigma 10-18mm f/2.8 DC DN Contemporary — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/4.5-6.3 of the other.
Do the Sigma 10-18mm f/2.8 DC DN Contemporary and Canon RF 15-30mm f/4.5-6.3 IS STM 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.
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