Explore Scientific 102mm f/7 Classic White “Essential Series” Air-Spaced Triplet ED Apochromatic Refractor Telescope, 1.14 arc sec, 2-Speed Focuser Review May 25, 2018November 4, 2018 - Conquerogue Size:102mm — f/7 Classic White Explore Scientific ED 102 Classic White Essential Series f/7 Air Spaced Triplet Refractor Telescope ES-ED10207-01