Feature:1. M42*0.75mm thread is divided into inner-ring and outer-ring double-layer structure. The camera angle can be adjusted conveniently by fixing the relative position of the inner and outer-ring with 3 screws.2. The whole is black aluminum alloy and will not fade. Do not hurt telescope thread, two-layer thickened aluminum alloy is very strong, excellent technology.3. Precise fit and solid connection, directly mount adapter and no adjustments required.4. Precision all-metal construction with close and smooth combination for secure and solid fit.5. Applicable models: for Sony/Minolta AF Mount Camera and standard 1.25 inch telescope eyepiece port.Spec:Condition: 100% Brand NewMaterial: Aluminium AlloyColor: BlackModel: T2-AFSize: Standard 1.25inchMount: AF MountThread: M42*0.75mmSuiatble for Sony/Minolta AF Mount Camera and standard 1.25 inch telescope eyepiece portPackage List: 1 * AF Mount Adapter Ring1 * 1.25inch Internal Thread BracketNote: Although the lens is physically suitable, automatic aperture, autofocus, or any other function will not work properly with this adapter ring.