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Thin metal adapter ring with 43mm inner and 86mm outer threads for 100mm filter holder

Urth

Urth 86-43mm Adapter Ring for 100mm Square Filter Holder

SKU CH-PB8S-SW7E4

Converts a 43mm lens to fit an 86mm thread for use with a 100mm square filter holder system

  • Converts 43mm lenses to 100mm filter system
  • 86mm outer thread fits Urth 100mm square holder
  • Lightweight alloy construction withstands regular use
  • True Threads design ensures secure mounting
  • Durable Miracles build quality for lasting reliability

86-43mm Adapter Ring for 100mm Filter System

This adapter ring connects a 43mm lens thread to an 86mm fitting for a 100mm square filter holder. It lets photographers use one holder system across multiple lens diameters. The lightweight alloy construction keeps weight low while maintaining thread precision. Ideal for shooters who want a single filter kit for varied lenses.

Lightweight alloy with precise threads

The ring is machined from a strong alloy that resists cross-threading and binding during repeated mounting. Its slim profile avoids vignetting on wide-angle lenses when the holder is attached. No moving parts or seals mean silent operation and no power draw. The durable finish withstands regular field use without corrosion.

Replaces brand-specific step-up rings

This single ring replaces a collection of proprietary step-up rings tied to one filter brand. The jump is worth it when you own several lenses with 43mm threads and want to standardise on a 100mm square filter system. Not suited for lenses with non-standard thread pitches or diameters outside the 43mm spec.

Highlights

  • Converts 43mm lenses to 100mm filter system
  • 86mm outer thread fits Urth 100mm square holder
  • Lightweight alloy construction withstands regular use
  • True Threads design ensures secure mounting
  • Durable Miracles build quality for lasting reliability

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 86-43mm adapter ring onto my 43mm lens threads?

Screw the 43mm side onto the lens front threads until snug, then slide the 100mm square filter holder onto the 86mm outer diameter; the step people miss is checking that the ring sits flush before locking the holder.

What maintenance or replacement will this adapter ring need over time?

The alloy threads can wear if cross-threaded repeatedly; clean grit from the 43mm and 86mm surfaces with a blower and microfibre cloth, and replace the ring if the holder no longer locks securely.

What is the first limit I will hit when using this ring for long exposures in cold, damp conditions?

The 43mm-to-86mm thread interface can bind if moisture freezes between the alloy surfaces, so keep a spare ring warm in a pocket for quick swaps during extended shoots.

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