What filter size does the Canon RF 24-240mm f/4-6.3 IS USM take?

The Canon RF 24-240mm f/4-6.3 IS USM takes 72mm screw-in filters — its front filter thread is 72mm. Any standard 72mm UV, polarizer or ND filter screws straight on.

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Canon RF lenses that share the 72mm thread

Among the Canon RF lenses we have verified so far, this is the only one on 72mm.

Screw-in filters are mount-agnostic — 11 verified lenses on other mounts also take 72mm: see every 72mm lens.

A step-up ring also lets a 72mm lens use one size-larger filters, which is how many photographers standardize a single filter set across lenses.

All 72mm lenses: the 72mm hub · every covered lens: filter sizes index · this lens on Amazon: Canon RF 24-240mm f/4-6.3 IS USM

Thread sizes verified 2026-08-28 against community-maintained per-mount lens specification tables (compiled from the manufacturers' own spec sheets), matched brand-strictly to our lens index. Lenses whose thread we could not uniquely verify are left out rather than guessed — coverage grows as verified data lands.