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NiSi

NiSi 117870 77-105mm S5/S6 Filter Adapter Ring

Mount your 77mm lens to the NiSi S5/S6 filter holder system with a precision aluminum adapter built for landscape and long-exposure filter work.

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Overview

For landscape and long-exposure photographers invested in the NiSi S5 or S6 filter holder ecosystem, the 77–105mm adapter is the connecting link between a 77mm threaded lens and the full range of 100mm system filters — graduated NDs, solid NDs, and the CPL slot built into the holder front. The adapter is precision-machined from aluminum alloy, which matters during long exposures: any flex or play between the lens and the holder introduces micro-movement that kills sharpness on exposures measured in seconds. A solid, rigid thread connection here isn't a luxury — it's a functional requirement for the work the system is designed to do, and this adapter delivers it at a weight profile that doesn't unbalance front-heavy ultra-wide lenses.

In the field, the adapter threads onto a 77mm front element quickly and locks the S5/S6 holder in position without tools, which keeps the workflow moving during the narrow window of golden-hour light when conditions change fast. The 77mm sizing covers a broad range of wide and ultra-wide lenses across all major mount systems — Canon L glass, Nikon wide-zooms, Sony GM wide primes, and Fujifilm XF lenses with step-up rings all fall into this category. The adapter's low profile minimizes the extension in front of the lens, which directly reduces vignetting risk at the wide focal lengths where filter systems see their heaviest use. It's a single-purpose tool, but within that purpose it performs reliably across the conditions that define serious landscape photography.

Specifications

Brand
NiSi
Model
117870
Adapter Thread Size
77mm (lens side)
Holder Interface Size
105mm
Compatible Holder Systems
NiSi S5, NiSi S6
Material
Aluminum alloy

Pros & Cons

👍 Pros

  • Aluminum alloy construction keeps the adapter lightweight without sacrificing the rigidity needed to hold a filter holder steady during long exposures — flex at the lens-to-holder interface ruins sharp shots.
  • Precision threading onto a 77mm filter thread creates a secure, rattle-free connection that won't shift between shots during multi-exposure landscape sessions.
  • Direct compatibility with both the S5 and S6 NiSi holder generations means this adapter remains usable if you upgrade your holder system.
  • The 77mm thread size covers a wide range of landscape and wide-angle lenses across Canon, Nikon, Sony, and Fujifilm systems — one adapter works across a multi-lens kit.
  • Compact and low-profile design adds minimal front protrusion, which helps control vignetting on wider focal lengths compared to bulkier adapter designs.

👎 Cons

  • Compatibility is strictly limited to the NiSi S5 and S6 holder systems — this adapter has no utility outside of that specific ecosystem, making it a dedicated purchase rather than a versatile accessory.
  • No weather sealing around the filter thread itself means water and dust can work into the adapter-to-lens interface on wet-weather shoots — dry carefully and inspect the thread before storage.
  • 77mm coverage excludes shooters whose primary wide-angle lens uses a different filter thread size, requiring separate adapters per lens even within the same system.
  • The aluminum construction, while durable, can gall or cross-thread if forced onto a dirty or misaligned lens thread — cleaning threads before attachment is important to prevent damage.
  • At this price point, there is no included storage pouch or case, increasing the risk of thread damage when carried loose in a camera bag.

Frequently Asked Questions

This adapter is designed specifically for the NiSi S5 and S6 filter holder systems. It is not interchangeable with NiSi V5, V6, or other NiSi holder families — confirm your holder model before ordering.
Yes — this adapter is designed to thread directly onto a 77mm filter thread, connecting your lens to the S5/S6 holder. The 77–105mm designation refers to the adapter stepping from your lens's 77mm thread up to the 105mm holder interface.
The S5/S6 system with this adapter is optimized for wide and ultra-wide lenses. Vignetting risk depends on your specific lens focal length and filter stack thickness — shooting wider than 16–17mm on full-frame with multiple stacked filters increases vignetting likelihood. Test at your widest shooting focal length before committing to a field session.
The NiSi S5/S6 system includes a foam light seal at the holder-to-adapter interface, and this aluminum adapter is precision-machined to maintain that seal. Long exposures in strong sidelight are the scenario most likely to reveal any seal gaps — check the seal condition periodically with use.
Yes — the S5/S6 holder system accommodates a circular polarizer in a dedicated front slot, and this adapter's connection to the holder maintains that functionality. You can combine the polarizer with ND and graduated ND filters as intended by the S5/S6 system design.

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