Item Type:Telescope Adapter Ring Material: Aluminum alloy Sleeve Thread: Male, M42x0.75mm (commonly known as: T2 thread) Collar Thread: Female, 2 inch to 24 tooth inch thread (commonly known as: SCT thread) Fitment: For Samsung Micro Storage Card NX Mount Camera Package List 1 x Sleeve 2 x Adapter Rings 1 x Wrench 1Wide Application: The telescope camera adapter is compatible with all of Starterra's SCT interface primary mirrors, such as 5SE, 6SE, 8SE, C5, C8, C9.25, C11,C14, and also for Samsung storage card NX mount camera. 2Aluminum Alloy Material: The adapter ring is made of aluminum alloy material, which is durable and not easily damaged, with no fading, and no damage to the telescope threads 3Easy to Install: The adapter can be accurately matched with the lens and firmly connected, allowing users to directly install the adapter ring without the need for adjustment. 4Convenient to Carry: The adapter has a small size and lightweight, making it convenient for users to carry and store. Users can take it to any place they need. 5Stable Structure: This product has a stable structure and can achieve complete integration, ensuring a stable fit between the product and the camera.