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Canon RF-S 10-18mm f/4.5-6.3 IS STM vs Canon RF-S 18-45mm f/4.5-6.3 IS STM

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

Last verified 2026-06-21 · Canon RF mount · prices change — check the retailer

SpecCanon RF-S 10-18mm f/4.5-6.3 IS STMCanon RF-S 18-45mm f/4.5-6.3 IS STM
Focal length10-18mm18-45mm
Max aperturef/4.5-6.3f/4.5-6.3
Typezoomzoom
CoverageAPS-CAPS-C
MountCanon RFCanon RF

Which should you buy?

Where to buy

Check the Canon RF-S 10-18mm f/4.5-6.3 IS STM price on Amazon →

Check the Canon RF-S 18-45mm f/4.5-6.3 IS STM price on Amazon →

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FAQ

What's the difference between the Canon RF-S 10-18mm f/4.5-6.3 IS STM and the Canon RF-S 18-45mm f/4.5-6.3 IS STM?
The Canon RF-S 10-18mm f/4.5-6.3 IS STM is 10-18mm f/4.5-6.3 zoom, APS-C; the Canon RF-S 18-45mm f/4.5-6.3 IS STM is 18-45mm f/4.5-6.3 zoom, APS-C. Both fit the Canon RF mount.

Do the Canon RF-S 10-18mm f/4.5-6.3 IS STM and Canon RF-S 18-45mm 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).

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