Feature：

Made of alloy, light weight and suitable for long term use. Precision machined to ensure a perfect match with your camera. Both the camera side and lens side of the adapter are made of high quality aluminium alloy, precision machined and chrome plated. Precise fit and solid connection - the lens will not wobble when mounted on the adapter, and will fit the lens without any adjustment.

Specifications：

Material: Brass and aluminum

Applicable lens：for M42 Screw Mount Lens

Applicable camera：for Pentax K PK camera

Color: Black/Slivery

Package include：1 x Mount Adapter Ring

Adapter ring usage:

1. First, set it in the camera menu: turn on "no lens shooting", and you can use the adapter ring.

2. Use LCD to focus, all are manual focusing.

3. Focusing function can be achieved by using MF zoom-in function and 7 or 14 times zoom-in function.

4. Use M or A mode to shoot.

5. Focus at infinite distance.

Note：

Although the lens will fit physically, automatic diaphragm (AE metering), or other auto functions are not retained using this adapter.