1. Thread Size: M42x0.75mm thread is suitable for interface astronomical telescopes,T2 adapter ring suitable for micro single EF‑M bayonet cameras.2. Applicable Telescope : Telescope camera T mount is suitable for 5SE, 6SE, 8SE, C5, C8, C9.25, C11, C14 and other interface main telescope.3. Multi Uses: Telescope camera T adapter set is used to connect camera to telescope, allows you to observe and take pictures of the entire moon, gas nebulae, or galaxies.4. High Strength Material: Telescope camera adapter is made of aluminum alloy material, , will not fade, do not hurt telescope thread.5. Easy to Install: Fine workmanship to ensure fit and firm connectionbetween camera and telescope, directly installed adapter ring, no adjustment.Specification:Item Type: Telescope Camera AdapterMaterial: Aluminum alloySleeve Thread: External, M42 x 0.75mm (commonly known as: T2 thread)Connection Thread: Internal, 2in 24 tooth inch thread (commonly known as: thread)Compatible : For micro single EF M bayonet camerasPackage List:1 x Telescope Camera Socket2 x Adapter Ring1 x Wrench