The NiSi M75 Protection Lens Cap is designed to attach to a NiSi M75 holder’s 67mm adapter ring, when the kit’s filterholder is removed.
While in use, this lens cap can protect the Circular Polariser Filter installed in the adapter ring while the adapter ring remains on a lens.
Perfect to protect the Built-in C-PL and no need to put off the C-PL after use it. Leave it mounted and the cap will protect it from scratches and dust.
Lens Cap