Evidence-led camera gear reference · US edition
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40.5 mm lens filter fit guide

Verified 40.5 mm lens examples, step-up ring direction and fit limitations.

A lens with a verified Ø40.5 mm ordinary front thread can accept a same-diameter screw-in filter as a mechanical candidate. Magnetic and holder systems need their own checks.

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Verified lens examples

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Ring direction

A step-up ring starts with the lens thread at 40.5 mm and presents a larger filter thread. A smaller front filter requires a step-down ring and may vignette.

What this does not prove

Thread size alone does not verify hood clearance, magnetic-system coupling, frame thickness or corner shading. Test at the widest focal length.

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Official sources and scope

Checked for this reference on October 30, 2026. Product firmware and support lists can change; inspect the current maker page for your exact revision.