System 75

Main Ring with CPL Rotation Mechanism for M75 – 67mm rear thread

Rated 5.00 out of 5 based on 1 customer rating

(1 customer review)

67mm NiSi M75 main ring, with polarizing rotation mechanism

Version for NiSi M75 only
Compatible with Landscape and PRO polariser
Screw in polarisers other than those for NiSi M75 Holder cannot be mounted.
Compatible with Lens Cap for NiSi M75
In aviation grade aluminium and coated with non-reflective black paint

€45.00

Shipping fee calculated at checkout

In stock

Estimated delivery December 12, 2025 if you order now.
The delivery date is estimated, not guaranteed. All shipments are monitored by us until delivery. More info on our Shipping Terms page.

SKU: itnisi0495

Official NiSi UK Guarantee

Official technical support

Ultra-compact and ultra-lightweight

Made from Aviation-grade aluminium

NiSi M75 67mm Main Ring with Rotating Mechanism Polariser

Replacement main ring with 67mm rear thread for NiSi M75. This ring is essential to use the NiSi Landscape Polariser (or NiSi Standard “PRO” polariser) on the NiSi M75 holder system. It is not compatible with other screw-in polarisers.

Using a spare rotating adaptor ring for the NiSi M75 Holder

Many photographers use a main ring for each lens, in order to keep one mounted on each lens and avoid taking it apart and moving it every time. If you use the main ring on a lens with 67mm thread, the ring and the Lens Cap for NiSi M75 are sufficient to protect the lens. If, on the other hand, you have a lens with a thread smaller than 67mm, you can add the corresponding adapter ring.

System 75

€45.00