Features: Telescope Lens Adapter:Compatible for EF lens mount, for M200 . This adapter set let you attach your camera to a telescope for astronomy photography and observation Convenient & Secure Installation:Step 1: Link the T Mount & 1.25" T shaped adapter through thread. Step 2: Thread the T Mount to the camera via the flanges. Step 3: Link 1.25" T shaped adapter to a telescope Easy Angles Adjustment:Loosen the T Mount through 3 threaded holes with the L shaped key (included) and fine turn the camera until you get a satisfactory angles. Tighten the T Mount when adjustment is done Manual Adjustment Only:Please note that autofocus, automatic diaphragms, and other functions will not availables with this T Mount installed. In this case, manual adjustment is required Specifications: Material:Alloy Color:Black for M200 Telescope Spotting Scope Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xT Mount, 1x1.25" T Shaped Adapter, 1xL Shaped Key 1xUser Manual