SVBONY SV170 1.25" Zoom Eyepiece 10mm-30mm Zoom Lens FMC 5-Element Structure for Telescope

Features 1 SVBONY super wide angle 1 25 zoom eyepiece 2 The zoom eyepiece allows you to change magnification power without swapping out eyepieces 3 5 Element 3 group made of high index glass deliver sharp high contrast vistas 4 A simple twist of the zoom eyepiece housing changes the focal length from 30mm to 10mm providing a variety of viewing magnification powers 5 Exceptionally long 17mm 18 5mm eye relief range allows eyeglass wearers to enjoy the entire field of view without needing to remove their glasses 6 Sleek black barrel with safety undercut to reduce the possibility of the eyepiece slipping out of the focuser or diagonal 7 Blackening lens edges anti reflection threads for maximum contrast Specification 1 Brand SVBONY2 Model SV1703 Focal Length 10 30mm4 Eye Relief 17 18 5mm5 Apparent Field of View 33° 51°6 Barrel Size 1 25inch7 Lens Structure 5 Element 3Group8 Filter Threads Standard 1 25 Filter Thread M28 5 x 0 6 9 Coatings Fully Multi Coated10 Blackening Lens Edges Yes11 Barrel Safety Recess Yes12 Eyecups Twist Up13 Eyecups Material Metal14 Net Weight 198g 6 98oz 0 44lbPackage includes 1 x SV170 Black 1 25in 10 30mm Zoom Eyepiece 2 x Rubber Dust Cover1 x Mirror ClothDetails picture