Features: <br>Brand new and high quality. <br>This adapter makes you attach your video camera with a 'C' or 'CS' thread to your telescope for prime focus photography. <br>C-threads are commonly used in most consumer video cameras whereas the CS thread is mostly used in security cameras. <br>The camera must have a standard removable C-mount lens, which is a 1" diameter thread. <br>Will not work on video cameras with a fixed lenses or bayonet mount. <br> <br>Specification: <br>Color: Black <br>Material: Aluminum Alloy <br>Outside thread: standard C thread (25.4mm) <br>Internal thread: M28*0.6mm <br>Outside diameter: 1.25in (31.7mm) <br>Dimensions: 9*4.5*3.1cm/3.5*1.8*1.2in <br>Weight: Approx. 19g <br> <br>Package List: <br>1 x Adapter<br>1、Brand new and high quality. <br>2、This adapter makes you attach your video camera with a 'C' or 'CS' thread to your telescope for prime focus photography. <br>3、C-threads are commonly used in most consumer video cameras whereas the CS thread is mostly used in security cameras. <br>4、The camera must have a standard removable C-mount lens, which is a 1" diameter thread. <br>5、Will not work on video cameras with a fixed lenses or bayonet mount.