Aluminum Alloy Material: This PK lens to Z mount adapter is made of premium aluminum alloy, and the anode oxygen oxidation process is adopted to ensure high hardness and wear proof performance. Rich Features: The PK to Z mount adapter supports full manual control, manual focus, manual exposure, aperture priority, matte paint, can focus infinitely far. Light and Portable: This camera lens mount adapter is small and lightweight, which can easily fit in your bag or pocket, providing you with a quality photography experience at any time. Applicable Models: Lens converter ring enables for PENTAX PK lenses to be compatible with for NIKON Z camera systems, including Z6, Z7, Z50, Z5, Z6II, Z7II, Zfc, Z9, and Z30. Easy to Install: Adopts 1:1 opening, precise fit and firm connection, you can directly install the adapter, no adjustment, simple and convenient operation.