Second hand camera adaptor 1.25" in good condition. Allows you to connect your SLR with T mount to a standard 1.25" opening. Also allows you to slot a 1.25" eyepiece inside the tube for eyepiece projection work.
Second hand USB to serial adaptor in excellent condition. Comes complete with drivers on a mini CD. Ideal for updating firmware on older Skywatcher and Celestron mounts that come with the serial PC cable.
A second hand 1.25" Extension Tube in good condition. This gives 2.5 inches of extension. Male to female 1.25". Allows an eyepiece or camera to be extended to achieve focus. This also has T threads for attaching DSLR cameras.