Canon RF 14-35mm f/4 L IS USM vs Canon RF-S 10-18mm f/4.5-6.3 IS STM
Both are Canon RF mount zooms for wide-angle and travel — here's how the specs differ and which to pick. Every spec is from the manufacturer's own catalog.
| Spec | Canon RF 14-35mm f/4 L IS USM | Canon RF-S 10-18mm f/4.5-6.3 IS STM |
|---|---|---|
| Focal length | 14-35mm | 10-18mm |
| Max aperture | f/4 | f/4.5-6.3 |
| Type | zoom | zoom |
| Coverage | full-frame | APS-C |
| Mount | Canon RF | Canon RF |
Which should you buy?
- the Canon RF 14-35mm f/4 L IS USM opens wider (f/4) — brighter in low light and more background blur
- the Canon RF 14-35mm f/4 L IS USM covers 14-35mm and the Canon RF-S 10-18mm f/4.5-6.3 IS STM covers 10-18mm — pick the range that matches what you shoot
- the Canon RF 14-35mm f/4 L IS USM covers full-frame (also works on APS-C bodies); the Canon RF-S 10-18mm f/4.5-6.3 IS STM is APS-C-only — it won't fill a full-frame sensor
Where to buy
Canon RF 14-35mm f/4 L IS USMSee price on Amazon
Canon RF-S 10-18mm f/4.5-6.3 IS STMSee price on Amazon
FAQ
What's the difference between the Canon RF 14-35mm f/4 L IS USM and the Canon RF-S 10-18mm f/4.5-6.3 IS STM?
The Canon RF 14-35mm f/4 L IS USM is 14-35mm f/4 zoom, full-frame; the Canon RF-S 10-18mm f/4.5-6.3 IS STM is 10-18mm f/4.5-6.3 zoom, APS-C. Both fit the Canon RF mount.
Which is better in low light, the Canon RF 14-35mm f/4 L IS USM or the Canon RF-S 10-18mm f/4.5-6.3 IS STM?
The Canon RF 14-35mm f/4 L IS USM — its f/4 maximum aperture lets in more light and gives more background blur than the f/4.5-6.3 of the other.
Do the Canon RF 14-35mm f/4 L IS USM and Canon RF-S 10-18mm 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 Canon RF-S 10-18mm f/4.5-6.3 IS STM is APS-C-only and won't fill a full-frame sensor.
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