Gosky Deluxe Telescope Camera Adapter Kit for Canon EOS/Rebel DSLR - Prime Focus and Variable Projection Eyepiece Photography - Fits Standard 1.25" Telescopes - Accepts 1.25" Eyepieces Fits ALL Canon EOS SLR / DSLR Models Fits all standard 1.25" astro telescopes and accepts filters (thread inside tube). An essential accessory for anyone who uses an astro scope for digiscoping. It is a camera adaptor for direct (Prime focus) photography with a SLR camera and eyepiece projection photography. This can also be used for cameras with a filter thread (T/52 converter and approptiate stepping ring required). Prime Focus for wide field shots too! Maximum Eyepiece Diameter = 1.5"All metal construction. Anodizing Aluminium process. All metal construction. Anodizing Aluminium process.