Explore Scientific AR102 f/6.5 Air-Spaced Doublet Achromat Refractor Telescope. This telescope manufactured by the specialists at Explore Scientific come with heavy-duty high quality components including a 2" dual-speed Crayford-style focuser a one-piece 2" diagonal with 99percent dielectric coatings an 8 X 50 non-illuminated straight -thru finderscope and quick release bracket and a cradle ring assembly with Vixen-style dovetail mount. The Explore Scientific 102mm AR Series Achromatic Refractor Telescope w/ Vixen Dovetail Mount will be able to handle the rigors of public star parties and educational outreach. With the Explore Scientific 102mm AR Doublet Achromatic f/6.5 Refractor Telescope you'll be ready to discover the Universe all at a small fraction of the price Specifications for Explore Scientific 102mm AR Doublet Achromatic f/6.5 Refractor Telescope: Focal Length: 663mm Focal Ratio: f/6.5 Limiting Magnitude: 12.5 Resolution: 1.14 arcsec Tube Length w/ Dew Shield: 25.5"; 698mm Diameter: 101mm Weight: 10.4lb; 4.7kg Dovetail: Vixen Package Contents: Explore Scientific 102mm AR Series Achromatic Refractor Telescope Explore Scientific DAR102065-02: AR102 f/6.5 Air-Spaced Doublet Achromat Refractor Telescope