This adapter ring is mainly used for connecting the "Pentax PK K Mount Lens" to "cameras with Sony NEX E Mount"?∨ easy and smooth to install?∨ remove and operate lens.Features:This lens mount adapter ring is mainly used for connecting the "Pentax PK K Mount Lens" to "cameras with Sony NEX E Mount".Suitable for Sony NEX E Mount camera?∨ such as for Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX-5T NEX-6 NEX-7 etc.Completely manual control?∨ manual focus and manual exposure.There is no electrical connection on the ring so diaphragm control of the lens is set manually.It can focus to infinity.Easy and smooth to install?∨ remove and operate lens.Equipped with lock and stop pin.Made of high-quality material?∨ durable for long time use.Specifications:Material: MetalCompatible lens: for Pentax PK K Mount LensCompatible camera: for Sony NEX E Mount CameraItem size: Approx. 6 * 6 * 3.2cm / 2.4 * 2.4 * 1.3inItem weight: Approx. 98g / 3.4ozPackage size: Approx. 6.8 * 6.8 * 3.5cm / 2.7 * 2.7 * 1.4inPackage weight: Approx. 105g / 3.7ozPackage List:1 * Adapter Ring
