This set contains a T-ring for Nikon Cameras and a 1.25" to M42 T-mount. They are made of high-quality material, durable for long time use. It is very easy to use: 1. Connect the T-ring mount and T-Mount by M42 threads. 2. Assemble the set to your Nikon camera. 3. Connect the camera with the set to the telescope by 1.25" ( 31.7 mm) excircle on T-mount. Tighten the screws on the 1.25" adapter. Make sure they are locked and safe. 4. Put on the camera and calibrate focal length te get a clear image.
Package Include: 1 * T-ring for Nikon SLR/DSLR; 1 * 1.25" -M42 T-mount.