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NiSi 42255 67mm to 100mm Adapter Ring — main product image
NiSi

NiSi 42255 67mm to 100mm Adapter Ring

Connect your 67mm threaded lenses to NiSi 100mm filter systems with this precision aluminum adapter ring.

$18.99*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The NiSi 42255 is a 67mm-to-100mm system adapter ring that lets photographers mount NiSi 100mm square and rectangular filter holders onto lenses with a 67mm filter thread. It threads onto the lens and connects to the 82mm main adapter ring that ships with NiSi holder systems, bridging the gap between smaller-threaded lenses and the 100mm filter ecosystem. Compatibility spans the V5, V5 Alpha, V5 Pro, V6, V6 Alpha, V6 Switch, V7, V7 Alpha, and C4 Cinema holders, making it a long-term investment that carries forward as you upgrade holders.

Constructed from corrosion-resistant anodized aluminum, the ring is built to withstand regular field use in varied weather conditions. It also functions independently as a 67mm-to-82mm step-up ring, allowing you to attach any 82mm screw-in circular filter to a 67mm lens. For landscape and long-exposure photographers who use multiple lenses with different thread sizes, this adapter is an essential piece of the NiSi 100mm system puzzle.

Key Features

Adapts lenses with 67mm filter threads to the 82mm main adapter ring on NiSi 100mm Systems

Compatible with NiSi V5, V5 Alpha, V5 Pro, V6, V6 Alpha, V6 Switch, V7, and V7 Alpha systems, along with C4 Cinema filter holder for 4"x 4" cinema filters

Can also act as 67mm-82mm step-up ring

Use with any 67mm standard filter thread lens

Corrosion-Resistant Anodized Aluminum

Specifications

Brand
NiSi
Model
42255
Lens Thread Size
67mm
Adapts To
82mm main adapter ring (NiSi 100mm systems)
Compatible Holders
V5, V5 Alpha, V5 Pro, V6, V6 Alpha, V6 Switch, V7, V7 Alpha, C4 Cinema
Material
Anodized Aluminum
Additional Function
67mm-to-82mm step-up ring

Pros & Cons

👍 Pros

  • Compatible with a wide range of NiSi 100mm filter holders including V5 through V7 and C4 Cinema
  • Doubles as a 67mm-to-82mm step-up ring for added versatility
  • Anodized aluminum construction is corrosion-resistant and durable
  • Lightweight and compact, adding minimal bulk to your filter setup

👎 Cons

  • Only adapts 67mm thread size — a separate ring is needed for each different lens thread diameter
  • Does not include the main 82mm adapter ring or filter holder, which must be purchased separately
  • Plain aluminum finish may bind if cross-threaded, requiring care during installation

Frequently Asked Questions

It works with the NiSi V5, V5 Alpha, V5 Pro, V6, V6 Alpha, V6 Switch, V7, V7 Alpha, and C4 Cinema filter holder systems.
Yes, it doubles as a 67mm-to-82mm step-up ring, so you can attach 82mm screw-in filters to a 67mm threaded lens.
It is made from anodized aluminum, which is lightweight, durable, and resistant to corrosion.
The ring is designed for use with the NiSi 100mm system and standard 67mm lenses. Vignetting is unlikely on most lenses at typical focal lengths, though ultra-wide lenses should be tested.

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