Gosky 1.25" Universal Camera Adapter Extension Tube - Connect Telescope to Camera Useful for either prime-focus or eyepiece-projection photography with refractors or reflector telescopes. 1.25 Inch camera adapter lets you attach a T-ring equipped DSLR or SLR camera directly to your telescope. Slides into 1.25" telescope focuser with step-down adapter; has T-threads for attachment of camera body. Suitable for eyepiece projection with an 1.25 eyepiece , Made of high grade alloy, not plastics. Whole metal construction and Anodizing Aluminium process outface