Canon Canon ET-60 Lens Hood is specifically designed for use with Canon's EF 75-300mm
Amazon.com : Celestron - Zoom Eyepiece for Telescope - Versatile 8mm-24mm Zoom for Low Power and High Power Viewing & NexYZ 3-Axis Universal Smartphone Adapter : Electronics
Celestron Aluminum Dew Shield & Cap for 8" SCT, EdgeHD or RASA OTA - 9