What filter size does the Yongnuo YN 50mm f/1.8S II DF DSM take?

The Yongnuo YN 50mm f/1.8S II DF DSM takes 58mm screw-in filters — its front filter thread is 58mm. Any standard 58mm UV, polarizer or ND filter screws straight on.

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Sony E lenses that share the 58mm thread

Buy one good set of 58mm filters and it also fits:

• Viltrox AF 50mm f/2.0 — 50mm f/2.0
• Yongnuo YN 50mm f/1.8S DF DSM — 50mm f/1.8
• Yongnuo YN 85mm f/1.8S DF DSM — 85mm f/1.8
• Yongnuo YN 11mm f/1.8S DA DSM WL — 11mm f/1.8
• Yongnuo YN 16mm f/1.8S DA DSM — 16mm f/1.8
• Yongnuo YN 23mm f/1.4 DA DSM Pro — 23mm f/1.4
• Yongnuo YN 33mm f/1.4 DA DSM Pro — 33mm f/1.4
• Yongnuo YN 56mm f/1.4 DA DSM Pro — 56mm f/1.4
• 7Artisans AF 25mm f/1.8 (APS-C) — 25mm f/1.8
• 7Artisans AF 35mm f/1.8 (APS-C) — 35mm f/1.8
• 7Artisans AF 50mm f/1.8 (APS-C) — 50mm f/1.8
• Samyang AF 35mm f/1.8 FE — 35mm f/1.8
• Samyang AF 75mm f/1.8 FE — 75mm f/1.8
• Samyang AF 24mm f/1.8 FE — 24mm f/1.8

Screw-in filters are mount-agnostic — 25 verified lenses on other mounts also take 58mm: see every 58mm lens.

A step-up ring also lets a 58mm lens use one size-larger filters, which is how many photographers standardize a single filter set across lenses.

All 58mm lenses: the 58mm hub · every covered lens: filter sizes index · this lens on Amazon: Yongnuo YN 50mm f/1.8S II DF DSM

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.