The Zeiss Compact Prime CP.2 85mm/T2.1 Cine Lens (EF Mount) is part of the second generation of CP cinema lenses that were the first to offer full-frame 35mm coverage of large sensor DSLRs (such as the Canon 5D Mark II).
Rent a Schneider ND filter kit made specifically for the Zeiss CP.2 lenses here.
Rental includes: Front lens cap, rear lens cap.