Canon RF 15-35mm f/2.8 L IS USM vs Canon RF-S 14-30mm f/4-6.3 IS STM PZ

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.

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

Spec	Canon RF 15-35mm f/2.8 L IS USM	Canon RF-S 14-30mm f/4-6.3 IS STM PZ
Focal length	15-35mm	14-30mm
Max aperture	f/2.8	f/4-6.3
Type	zoom	zoom
Coverage	full-frame	APS-C
Mount	Canon RF	Canon RF

Which should you buy?

the Canon RF 15-35mm f/2.8 L IS USM opens wider (f/2.8) — brighter in low light and more background blur
the Canon RF 15-35mm f/2.8 L IS USM covers 15-35mm and the Canon RF-S 14-30mm f/4-6.3 IS STM PZ covers 14-30mm — pick the range that matches what you shoot
the Canon RF 15-35mm f/2.8 L IS USM covers full-frame (also works on APS-C bodies); the Canon RF-S 14-30mm f/4-6.3 IS STM PZ is APS-C-only — it won't fill a full-frame sensor

Where to buy

Canon RF 15-35mm f/2.8 L IS USMSee price on Amazon

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Canon RF-S14-30mm F4-6.3 is STM PZ, Mirrorless Lens, Ultra-Wide Angle Zoom,

Canon RF-S 14-30mm f/4-6.3 IS STM PZSee price on Amazon

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FAQ

What's the difference between the Canon RF 15-35mm f/2.8 L IS USM and the Canon RF-S 14-30mm f/4-6.3 IS STM PZ?
The Canon RF 15-35mm f/2.8 L IS USM is 15-35mm f/2.8 zoom, full-frame; the Canon RF-S 14-30mm f/4-6.3 IS STM PZ is 14-30mm f/4-6.3 zoom, APS-C. Both fit the Canon RF mount.

Which is better in low light, the Canon RF 15-35mm f/2.8 L IS USM or the Canon RF-S 14-30mm f/4-6.3 IS STM PZ?
The Canon RF 15-35mm f/2.8 L IS USM — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/4-6.3 of the other.

Do the Canon RF 15-35mm f/2.8 L IS USM and Canon RF-S 14-30mm f/4-6.3 IS STM PZ 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 14-30mm f/4-6.3 IS STM PZ 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-S 10-18mm f/4.5-6.3 IS STM vs Canon RF 10-20mm f/4 L IS STM · Canon RF 50mm f/1.2 L USM vs Canon RF 85mm f/1.2 L USM · Canon RF 15-35mm f/2.8 L IS USM vs Canon RF 15-30mm f/4.5-6.3 IS STM · Canon RF 15-35mm f/2.8 L IS USM vs Canon RF 20-50mm f/4 L IS USM PZ · all Canon RF lenses · all comparisons

Canon RF 15-35mm f/2.8 L IS USMAffiliate linkSee price on Amazon