M42 to M48 075mm Internal External Thread Telescope Adapter Ring _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Telescope Adapter Ring M42 to M48 Aluminium Alloy 0.75mm Internal External Thread M42 to M48 Coupling Ring Adapter _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ Feature: _x000D_ _x000D_ 1. Seamless Connection: This telescope adapter ring features seamless connection, M42 and M48 fittings can be connected together._x000D_ 2. 0.75mm Thread: This M42 to M48 coupling ring adapter possesses M42x0.75mm external thread and M48x0.75mm internal thread._x000D_ 3. Aluminium Alloy: This M42 to M48 ring adapter is made of aluminium alloy material, sturdy and durable._x000D_ 4. Easy Installation: This telescope adapter ring can be easily installed, very flexible and convenient to use._x000D_ 5. Extinction Treatment: The inner wall of this telescope lens filter ring adapter adopts extinction treatment, avoid radiation affecting the image._x000D_ _x000D_ _x000D_ Specification: _x000D_ _x000D_ Item Type: Telescope Adapter Ring_x000D_ Material: Aluminium Alloy_x000D_ Internal Thread M48 x 0.75mm_x000D_ External Thread M42 x 0.75mm (Commonly Known As T2 Thread)_x000D_ Thread Depth: 3mm_x000D_ Flange Distance: 4mm_x000D_ Total Length: 7mm_x000D_ Diameter of Inner Hole: 39mm_x000D_ Outer Frame Diameter: 50.7mm0.1mm_x000D_ _x000D_ _x000D_ _x000D_ Package List: _x000D_ _x000D_ 1 x_x000D_ _x000D_ Telescope Adapter Ring_x000D_ _x000D_ 1 x Plastic Storage Box _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_