Explore Scientific Products (2) How Do I Adjust the Tension on my Explore Scientific Telescope Crayford Focuser? (4) Where Can I Find A Case For My AR Series Telescope? (7) What are the differences between the new ED80CF, the 80mm f/6 Air-Spaced Triplet Apochromat with a Carbon Fiber tube and the original ED80 Air-Spaced (9) How do I use my new Explore Scientific Right Angle Illuminated Finder Scope?