Helix | Base Plates

I attached the base plate to an NSI step-up ring to fit a 62mm lens for my OM 1 Mark II kit. I have a Peter McKinnon Series variable neutral density and polarizer filter and use it on four of my lenses in various circumstances. The quality is outstanding and the magnetic feature makes changing easy. The only negatives are weight and cost.

Pretty great system. Filters are very nice I don't see any discoloring or vignetting. Only thing I would like changed is the metal lens cap and its ease of removal without changing the stop on the variable ND. Murpheys Law I already hit the filter with it by accident and dropped it trying to pull it out of the magnetic grip. Otherwise its ability be a polarizer and VND that can attach to all my 82/77mm lenses is great whilst keeping it all low profile and very color accurate and h

Great filters, 10/10 would buy again along with their mattebox