☂High Quality Material: The lens adapter ring is made of aviation aluminum alloy material, anodized process, fine workmanship, strong and durable. It has a good metallic texture, thereby increasing the aesthetics. | ☂Compatibility: The lens adapter ring is used for Minolta MD Mount Lens, suitable for Pentax PK Mount Camera, Such for Pentax K100D, K110D, K10D, K10D Grand Prix, K100D Super, K200D, K20D, K-m, K-7, K-x, K-r, K-5, K-01, K-30, K-5 II, K-5 IIs, K-50, K-500, K-3, K-S1, K-S2, K-3 II, K-1, K-70, KP etc.It can mount the lens to the camera body. | ☂Manual focus: There are no electrical contacts on the adapter ring, so auto focus is not supported. You can perform manual exposure through the built-in correction lens in the body to help focus. | ☂Lightweight and portable: Light weight, small size, easy to carry. Easy to install and disassemble. | ☂Strong connection: The processing accuracy is high, the mounting seat is well sealed, and the precise thread ensures a firm connection between the lens and the camera body, and it is convenient to install and disassemble.