Canon RF 70-200mm f/2.8 L IS USM Z vs Canon RF 75-300mm f/4-5.6 DC

Both are Canon RF mount zooms for telephoto and sports & action — 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 70-200mm f/2.8 L IS USM Z	Canon RF 75-300mm f/4-5.6 DC
Focal length	70-200mm	75-300mm
Max aperture	f/2.8	f/4-5.6
Type	zoom	zoom
Coverage	full-frame	full-frame
Mount	Canon RF	Canon RF

Which should you buy?

the Canon RF 70-200mm f/2.8 L IS USM Z opens wider (f/2.8) — brighter in low light and more background blur
the Canon RF 70-200mm f/2.8 L IS USM Z covers 70-200mm and the Canon RF 75-300mm f/4-5.6 DC covers 75-300mm — pick the range that matches what you shoot

Where to buy

Canon RF70-200mm F2.8 L is USM Lens, Mirrorless Telephoto Zoom Lens, Compatible with EOS R Series APS-C and Full-Frame C

Canon RF 70-200mm f/2.8 L IS USM ZSee price on Amazon

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Canon RF 75-300mm f/4-5.6 DCSee price on Amazon We could not find this one on Amazon US in Canon RF — this button runs an Amazon search for it rather than opening a product page.

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FAQ

What's the difference between the Canon RF 70-200mm f/2.8 L IS USM Z and the Canon RF 75-300mm f/4-5.6 DC?
The Canon RF 70-200mm f/2.8 L IS USM Z is 70-200mm f/2.8 zoom, full-frame; the Canon RF 75-300mm f/4-5.6 DC is 75-300mm f/4-5.6 zoom, full-frame. Both fit the Canon RF mount.

Which is better in low light, the Canon RF 70-200mm f/2.8 L IS USM Z or the Canon RF 75-300mm f/4-5.6 DC?
The Canon RF 70-200mm f/2.8 L IS USM Z — its f/2.8 maximum aperture lets in more light and gives more background blur than the f/4-5.6 of the other.

Do the Canon RF 70-200mm f/2.8 L IS USM Z and Canon RF 75-300mm f/4-5.6 DC 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).

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

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Canon RF 70-200mm f/2.8 L IS USM ZAffiliate linkSee price on Amazon