What filter size does the Canon RF 85mm f/1.2 L USM take?

The Canon RF 85mm f/1.2 L USM takes 82mm screw-in filters — its front filter thread is 82mm. Any standard 82mm UV, polarizer or ND filter screws straight on.

As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Affiliate links never affect our specs or which lenses we compare.

Canon RF lenses that share the 82mm thread

Buy one good set of 82mm filters and it also fits:

• Canon RF 135mm f/1.8 L IS USM — 135mm f/1.8
• Canon RF 15-35mm f/2.8 L IS USM — 15-35mm f/2.8
• Canon RF 24-70mm f/2.8 L IS USM — 24-70mm f/2.8
• Canon RF 600mm f/11 IS STM — 600mm f/11

Screw-in filters are mount-agnostic — 7 verified lenses on other mounts also take 82mm: see every 82mm lens.

A step-up ring also lets a 82mm lens use one size-larger filters, which is how many photographers standardize a single filter set across lenses.

All 82mm lenses: the 82mm hub · every covered lens: filter sizes index · this lens on Amazon: Canon RF 85mm f/1.2 L 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.