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NiSi

NiSi 500177 105mm Alpha Adapter for 150mm Filter Holders

Expand Your Filter System's CompatibilityIntroducing the NiSi 105mm Alpha Adapter, engineered to seamlessly integrate your S5 and S6 Series 150mm Filter Holders with lenses featuring 105mm front filter threads. This adapter enhances the versatility of your existing NiSi filter system, opening up ...

$49.00*
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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

Expand Your Filter System's Compatibility

Introducing the NiSi 105mm Alpha Adapter, engineered to seamlessly integrate your S5 and S6 Series 150mm Filter Holders with lenses featuring 105mm front filter threads. This adapter enhances the versatility of your existing NiSi filter system, opening up new possibilities for your photography.

  • Compatibility: Designed for use with NiSi S5 and S6 Series 150mm Filter Holders.
  • Lens Compatibility: Adapts filter holders to lenses with 105mm front filter threads.
  • Material: Durable and lightweight aluminum alloy construction.
  • Additional Options: Optional step-up adapters available for 62mm, 77mm, 82mm, and 95mm lenses (sold separately).
  • Limitation: When used with this adapter, circular polarizer filters or other circular S5 or S6 filters cannot be accommodated.

Key Features

Compatible with NiSi S5 and S6 Holder Frames (Sold Separately)

Adaptor ring only, this product requires the S5 or S6 Filter holder frame

Convert the NiSi S5 or S6 filter holder for ultra-wide lenses to standard filter threads

Suitable for 105mm thread lenses

Adaptors to 62, 77, 82, and 95mm are available separately

Specifications

Model
500177 105mm Alpha Adapter
Compatibility
NiSi S5 and S6 Holder Frames (Sold Separately)
Lens Thread Size
105mm
Filter Holder Size
150mm

Pros & Cons

👍 Pros

  • This NiSi Alpha Adapter allows conversion of NiSi S5 or S6 filter holders for ultra-wide lenses to standard filter threads.
  • It is specifically suitable for lenses with a 105mm filter thread, ensuring a secure and precise fit for compatible lenses.
  • Designed for use with NiSi S5 and S6 Holder Frames, this adapter maintains compatibility within the NiSi filter system.
  • The adapter ring facilitates the use of 150mm filter holders on lenses that typically wouldn't accommodate them, expanding creative options.
  • Availability of additional adaptors (62, 77, 82, and 95mm) sold separately suggests a modular system for diverse lens compatibility.

👎 Cons

  • This product is only an adaptor ring, meaning it requires the separate purchase of an S5 or S6 Filter holder frame to be functional.
  • It is specifically designed for 105mm thread lenses, limiting its direct compatibility to a particular size without additional adaptors.
  • The product description highlights that adaptors to other sizes (62, 77, 82, and 95mm) are available separately, adding to the overall cost.
  • Users must already own or purchase a NiSi S5 or S6 filter holder, which represents a significant prior or concurrent investment.
  • The benefit of converting to "standard filter threads" might be less impactful if the primary use case is specifically with 150mm filter holders.

Frequently Asked Questions

This adapter is designed to convert NiSi S5 or S6 filter holders, originally for ultra-wide lenses, to work with standard filter threads on lenses with a 105mm thread.
No, this product is solely the adaptor ring, and it requires the NiSi S5 or S6 Filter holder frame, which is sold separately, to function.
This 500177 Alpha Adapter is specifically suitable for lenses that have a 105mm filter thread.
Yes, adaptors for 62mm, 77mm, 82mm, and 95mm lens threads are available separately, expanding compatibility with other lenses.
This adapter is designed for compatibility with NiSi S5 and S6 Holder Frames specifically, ensuring proper fit and function within that system.

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