The NiSi PRO C-PL Filter for NiSi 100mm V5/V5 Pro/V6/C4 is an 86mm PRO C-PL that works exclusively with the NiSi 100mm V5/V5 Pro/V6/C4 Holders.
Please note this is included with the NiSi V5/V5 Pro/V6/C4 Pro Holder Kit and is sold as a spare part.
When used with the V5 Alpha the is also required to mount the CPL.
