【High Quality】Professional manufacturing, exquisite workmanship, this Camera Lens Adapter is made of high quality aluminum alloy, With Optical glass,durable, non deformation, also with corrosion resistant and glossy.Extinction method: professional-grade lens matt paint on the inner wall .External coating: black part hard oxidation process, silver part composite plating | 【Focus】Full manual operation, manual focus, manual adjustable aperture. Autofocus, automatic aperture and AE metering will be DISABLED.Need to focus manually and set exposures manually. Shoot with manual mode or aperture priority mode. Turn on "Release without lens" mode before use. Glass Focus to Infinity | 【Unique Design】AMOPOFO The lens adapter allows you to mount a Pentax PK lens to Nikon F-Mount Cameras. Take advantage of our engineering with the 1.4x optic glass that is used to make up the focal flange distance difference between the lens and camera (distance between the lens flange and film/sensor plane).This corrective lens in our adapter allows an older lens to properly focus to infinity on the newer camera body*. | 【Suitable】Lens: Pentax PK lens Compatible Nikon F Cameras (including but not limited to): D7100, D7000, D5300, D5200, D5100, D5000, D3300, D3200, D3100, D3000, D800, D800E, D700, D610, D600, D300, D300S, D200, D100, D50, D60, D70, D80, D90, D40, D40x, N70s, D4, D4S, D3, D3S, D3X, D2, D2H, D2Hs, D2X, D2Xs, D1, D1H, D1X, DF | 【NOTICE】:Autofocus, automatic aperture and AE metering will be DISABLED. Need to focus manually and set exposures manually. Shoot with manual mode or aperture priority mode. Turn on "Release without lens" mode before use.