✅ [SINCE 1949] Praktica, launching optical products for over 70 years. Customer support in the UK. 🖼️[PHOTOGRAPHY] Take photographs at long range by attaching this Praktica Extension Tube to your Spotting Scope. Your spotting scope/telescope will effectively become a powerful telephoto lens when you then attach it to your camera. 📸[COMPATIBILITY] Works with spotting scopes with a 47mm eyepiece (if your spotting scope has a 42mm eyepiece you can find the compatible eyepiece tube under code B003UBHPWC). Can be used with both straight and angled spotting scopes. Tube length is 900mm. ❗[REQUIRED] Praktica T2 Ring Adapter Mount for your camera (available for Canon EOS cameras under product code B07F2JBZZD and Canon EOS-M cameras under product code B07F2K3L93). 💯 [CONNECTION] This extension tube is designed to fit securely to the lens thread on your spotting scope, yet it can still be removed easily when not needed. The sturdy bayonet flange locks in place, providing secure contact between your spotting scope and camera. 🌌 [ASTRONOMY] Perfect for shooting pictures of terrestrial or celestial scenes, also birdwatching & wildlife. 💪[MATERIAL] High quality steel construction.