PK Lens Mount Adapter Ring for Pentax Phoenix PK Lens to EF Camera Description: Brand new and high quality Features: There is no ROM connection on the ring, the aperture control of the lens must be set manually. This shifting adapter allows you to change focus with manual lens for Pentax K. Solid and durable, high precision, smooth surface finish copper interface provides no abrasion between the lens and the interface. Easy installation and operation, sufficiently tight and incredibly smooth, provides protection for camera and lens. Specification: Model: PK Type: Adapter Ring Compatible Lens: for all manual PK lenses (for Pentax, for Phoenix, for Ricoh, for Vivitar, etc.) Compatible Camera: for DSLR, part of full and film camera Material: Metal Dimensions: 7x7x1cm/2.76x2.76x0.39'' (approx.) Color: Silver Quantity: 1 Pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. make sure you don't mind before bidding. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Lens Mount Adapter (other accessories demo in the picture is not included.)