Full Metal Telescope Camera Adapter T-ring + 1.25" Telescope Mount Adapter Use directly with your camera. Barlow Projection: Use with your Barlow lens and camera. Eyepiece Projection: Use your eyepiece with an extension tube. Extended Barlow Projection: Use an extension tube with your Barlow lens (increases magnification). Telescope Mount Adapter: - Features a 1.25-inch mounting size on the telescope side. - M42x0.75mm outer thread on one end and standard 1.25-inch (31.7mm) fitting on the other. - Fully threaded interior to minimize internal reflections. - Accepts standard 1.25-inch eyepiece filters. T-ring (M42x0.75mm thread): - Connects DSLR cameras (Canon EOS EF mount or Nikon F mount) to the 1.25-inch extension tube and telescope mount adapter. Extension Tube: - M42x0.75mm threads on both ends — one side connects to the T-ring, the other to the telescope mount adapter. Specifications: - Material: Aluminum - Color: Black - Compatible with Canon EOS EF mount DSLR cameras (e.g., 5D series, 60D, 70D, 80D, Rebel series, etc.) and Nikon F mount DSLR cameras (e.g., D4, D810, D750, D7000, D5300, etc.). - Designed for telescopes with standard 1.25-inch eyepiece ports. Package Includes: - 1 x Telescope Mount Adapter - 1 x T-ring - 1 x Extension Tube