Adapter rings compatible with 75mm square filters systems NiSi M75
These rings allow you to adapt the 67mm main ring included in the NiSi M75 Holder with lenses having a frontal thread from 39 to 67mm. The adapters can also be used as 67mm step-up rings, for example to use 67mm circular filters on other lenses. Choose the size, from 39mm up to 67mm*.
There is no need to over-tighten the ring. As soon as you feel resistance the ring is secured.
NiSi M75 is suitable for lenses with front thread up to 67mm.
For larger thread lenses the M75 system may be used up to 72mm thread in these conditions:
- with NiSi 72mm ring without the polariser (available here selecting 72mm as size)
- keeping the use of polariser with a FOV no wider than 40mm approx (m4/3), and Fuji 50-150. A step-down ring 72-67mm is required, with a 67-67mm extender ring, both available from third parties
- to keep the use of polariser with other systems please use the max 72mm thread and min 40mm FOV as a guide
Please note: step-down rings are not included.
The system will fit all 67mm thread lenses without additional rings, the main adaptor has a 67mm thread.
Third-party rings can be also used to enable the system to fit smaller lens threads such as 38mm.