Feature:1. M42‑MD Adapter Design: The M42 mount lens can be mounted on the body of the MD mount camera through the M42‑MD adapter.2. Minuteness Fitting: Minuteness machining, tight fitting, minuteness fitting and no light leakage.3. Manufacturing Material: Made of silver copper alloy material, it can reduce the wear of camera and lens, which undoubtedly extends its service life.4. Diverse Features: In addition, accurate axis, fast focusing, high strength, and good stability.5. Applicability: Suitable for M42 mount lens and MD mount camera body for Minolta.How to Use:1. Align the marking point of the lens mount with that of the adapter and rotate clockwise. When the sound of "click" is heard, the lens is installed in place.2. Align the marking point on the installed lens adapter with the marking point on the camera body and rotate clockwise. When the "click" sound is heard, it means that the lens adapter is installed in place.3. Press the lens release button on the camera body and rotate counterclockwise to remove the lens together with the adapter.4. The adapter can be removed from the lens by rotating counterclockwise.Specification:Item Type: Lens AdapterWeight: Approx.41g / 1.4ozMaterial: Silver Copper Alloy Applicable Lens: M42 Mount Lens Applicable Camera Body: MD Mount Camera Body For MinoltaPackage List:1 x Adapter Ring