What filter size does the Sigma 23mm f/1.4 DC DN Contemporary take?

The Sigma 23mm f/1.4 DC DN Contemporary takes 52mm screw-in filters — its front filter thread is 52mm. Any standard 52mm UV, polarizer or ND filter screws straight on.

The L-Mount and Sony E versions of this lens take the same 52mm thread.

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Canon RF lenses that share the 52mm thread

Buy one good set of 52mm filters and it also fits:

• Canon RF 35mm f/1.8 Macro IS STM — 35mm f/1.8
• Canon RF 24mm f/1.8 Macro IS STM — 24mm f/1.8

Screw-in filters are mount-agnostic — 32 verified lenses on other mounts also take 52mm: see every 52mm lens.

A step-up ring also lets a 52mm lens use one size-larger filters, which is how many photographers standardize a single filter set across lenses.

All 52mm lenses: the 52mm hub · every covered lens: filter sizes index · this lens on Amazon: Sigma 23mm f/1.4 DC DN Contemporary

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.