Peter McKinnon (Peter McKinnon) Collaboration Model. This is a high-quality variable ND filter. It is for 67mm lenses. It has been used very little, so there are no noticeable scratches or stains, but it is a used item, so please refrain from purchasing if you are sensitive to such things. It is a variable ND + Mist diffusion filter featuring professional-grade cinema series glass and a precisely engineered aluminum frame. The new frame design, updated from the previous model, has a rotating mechanism with tactile feedback, allowing you to easily change the stop value without missing the shutter timing. It also comes with a cover to protect the filter from 360°. PolarPro Variable ND Filter Peter McKinnon Signature Edition II 6-9 STOP (ND64-ND512) 67mm Brand: PolarPro Filter Function: ND (Neutral Density) Filter Filter Shape: Circular Circular Filter Size (mm): 67.0 mm ND Filter Type: Variable Filter Surface: Full Surface Number of Filter Sheets: 1 sheet