Explore Scientific ED102 Classic White Air Spaced Triplet714mm Focal Length2.5in HEX Focuser. f/7 True APO with HOYA FCD100 ED Glass in Advanced 4-Point Push-Pull Collimatable Cell with Centering Adjustments and Locks; Metal Tube; EMD Coatings; Retractable Lens Hood; Classic White Finish; Rotatable HEX Dual-Speed 2.5-inch R&P Focuser with 2 Extension Tubes and Compression Ring; Cradle Rings attached to 45mm Wide Saddle Dove Plate (Vixen-Style) with Cone Angle Adjustments and Handle with Slot for Piggy Back Attachment; 2-inch 99percent Reflective Diagonal Mirror with Compression Ring and 1.25-inch Adapter; Mounting Shoe for Finder Scope Bracket Specifications for Explore Scientific ED102 Classic White Air Spaced Triplet 714mm Focal Length: Manufacturer: Explore Scientific Color: Black/White Package Contents: Explore Scientific ED102 Classic White Air Spaced Triplet 714mm Focal Length Explore Scientific FCD100-10207-02: ED102 Classic White Air Spaced Triplet714mm Focal Length2.5in HEX Focuser