What filter size does the Canon RF 100mm f/2.8 L Macro IS USM take?

The Canon RF 100mm f/2.8 L Macro IS USM takes 67mm screw-in filters — its front filter thread is 67mm. Any standard 67mm UV, polarizer or ND filter screws straight on.

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Canon RF lenses that share the 67mm thread

Buy one good set of 67mm filters and it also fits:

• Canon RF 100-400mm f/5.6-8 IS USM — 100-400mm f/5.6-8
• Canon RF 15-30mm f/4.5-6.3 IS STM — 15-30mm f/4.5-6.3
• Canon RF 16-28mm f/2.8 IS STM — 16-28mm f/2.8
• Canon RF 20-50mm f/4 L IS USM PZ — 20-50mm f/4
• Canon RF 20mm f/1.4 L VCM — 20mm f/1.4
• Canon RF 24-105mm f/4-7.1 IS STM — 24-105mm f/4-7.1
• Canon RF 24mm f/1.4 L VCM — 24mm f/1.4
• Canon RF 28-70mm f/2.8 IS STM — 28-70mm f/2.8
• Canon RF 35mm f/1.4 L VCM — 35mm f/1.4
• Canon RF 45mm f/1.2 STM — 45mm f/1.2
• Canon RF 50mm f/1.4 L VCM — 50mm f/1.4
• Canon RF 85mm f/1.4 L VCM — 85mm f/1.4
• Canon RF 85mm f/2 Macro IS STM — 85mm f/2
• Sigma 17-40mm f/1.8 DC Art — 17-40mm f/1.8
• Tamron 11-20mm f/2.8 Di III-A RXD — 11-20mm f/2.8
• Tamron 17-70mm f/2.8 Di III-A VC RXD — 17-70mm f/2.8
• Tamron 18-300mm f/3.5-6.3 Di III-A VC VXD — 18-300mm f/3.5-6.3

Screw-in filters are mount-agnostic — 90 verified lenses on other mounts also take 67mm: see every 67mm lens.

A step-up ring also lets a 67mm lens use one size-larger filters, which is how many photographers standardize a single filter set across lenses.

All 67mm lenses: the 67mm hub · every covered lens: filter sizes index · this lens on Amazon: Canon RF 100mm f/2.8 L Macro IS USM

Canon RF 100mm f/2.8 L Macro IS USM

Fits

Canon EOS R6 Mark II, Canon EOS R7, Canon EOS R50 and 13 more Canon RF cameras

Type

portrait prime 100mm

Max aperture

f/2.8

Weight

685 g

Weather-sealed

Yes

See price on Amazon

Thread sizes verified 2026-09-03 against per-mount lens specification tables and, where no such table exists (L-mount), the manufacturers’ own published specification pages, 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.