What filter size does the Viltrox AF 25mm f/1.7 Air take?

The Viltrox AF 25mm f/1.7 Air takes 52mm screw-in filters — its front filter thread is 52mm. Any standard 52mm UV, polarizer or ND filter screws straight on.

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Fujifilm X lenses that share the 52mm thread

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

• Fujifilm XC 15-45mm f/3.5-5.6 OIS PZ — 15-45mm f/3.5-5.6
• Fujifilm XF 18mm f/2 R — 18mm f/2
• Fujifilm XF 35mm f/1.4 R — 35mm f/1.4
• Meike AF 25mm f/1.7 Air — 25mm f/1.7
• Meike AF 55mm f/1.4 — 55mm f/1.4
• Sigma 30mm f/1.4 DC DN Contemporary — 30mm f/1.4
• TTArtisan AF 23mm f/1.8 X — 23mm f/1.8
• TTArtisan AF 56mm f/1.8 X — 56mm f/1.8
• Viltrox AF 35mm f/1.7 Air — 35mm f/1.7
• Viltrox AF 56mm f/1.7 Air — 56mm f/1.7

Screw-in filters are mount-agnostic — 36 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: Viltrox AF 25mm f/1.7 Air

Viltrox AF 25mm f/1.7 Air

Fits

Fujifilm X-M5, Fujifilm X-E5, Fujifilm X-T50 and 10 more Fujifilm X cameras

Type

everyday prime 25mm

Max aperture

f/1.7

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.