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A silver aluminium ring with 40mm threads on one side and M10 mount on the other

Haida

Haida 40mm Lens Thread to M10 100mm Filter Holder Adaptor Ring HD4251-40

SKU CH-ABNC-VCMPR

Connects 40mm threaded lenses to the Haida M10 100mm filter holder with an all-metal aluminium ring

  • Designed for Haida M10 100mm filter holder
  • All-metal aluminium construction ensures durability
  • Fits lenses with 40mm filter thread diameter
  • Secure connection reduces risk of damage
  • Enables use of 100mm filters on 40mm lenses

Dedicated M10 100mm Filter Holder Adaptor

This adaptor ring connects lenses with a 40mm filter thread to the Haida M10 100mm filter holder system. It is built from aluminium and carries model reference HD4251-40. The ring is designed exclusively for the M10 holder, ensuring a precise mechanical link between the lens barrel and the filter frame.

Capacity and headroom: 40mm thread to 100mm system

The ring accepts any lens that presents a standard 40mm front filter thread, allowing that lens to carry the full 100mm square or rectangular filter range. It runs out when a lens has a different thread pitch or diameter, or when a filter holder other than the M10 series is used. No step-up or step-down function is provided; the adaptor is a single fixed conversion.

Build integration: aluminium ring for M10 workflow

The all-metal construction mates directly with the M10 holder’s locking mechanism, adding minimal thickness to the optical path. It frees the photographer to use graduated neutral density, polarising or creative filters on lenses that would otherwise be incompatible with the 100mm system. The ring requires the M10 holder itself and a lens with a 40mm thread; it does not adapt other thread sizes or holder types.

How it compares

Measured against everything we stock in Lens Filters & Polarizers, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 97% of the 1,281 comparable items (median $48.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the 40mm adaptor ring thread onto my existing lens filter threads?

Yes, the ring is machined for lenses with a 40mm filter thread and screws directly onto them before the Haida M10 100mm holder is attached.

How can I confirm the adaptor is seated correctly on the holder?

The metal ring locks into the M10 holder with a firm click and sits flush, so no gap is visible between the adaptor and the holder base.

Does the package include the M10 100mm filter holder or any filters?

No, only the 40mm aluminium adaptor ring is supplied; the Haida M10 100mm holder and filters must be purchased separately.

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