SVBONY SV135 Zoom Eyepiece and 3X Barlow Lens, Zoom 7 to 21mm 1.25 Inch Telescope Eyepiece, Telescope Accessories, Fully-Multi Coated Achromatic Barlow Lens for Astronomical Visual and Photography

SVBONY SV135 Zoom Eyepiece and 3X Barlow Lens, Zoom 7 to 21mm 1.25 Inch Telescope Eyepiece, Telescope Accessories, Fully-Multi Coated Achromatic Barlow Lens for Astronomical Visual and Photography

• SV135 7 mm to 21mm adjustable focal length;SV135 7-21mm zoom eyepiece equivalent to multiple eyepieces ;obtain higher magnification with short focal length;It could bring you a better observation experience in a comfortable situation with high-contrast imaging.
• Fully multi-coated Premium eyepiece;The true fully multi-coated Premium eyepiece with superior edge and center sharpness than normal PLOSSL eyepieces; 6-Element 4-Group premium optical design for superior optical performance. Superior sharpness and color correction;real physical computing magnification;triple the power of any 1.25" telescope eyepiece with the universal barlow lens.
• A cost-effective eyepiece;Full metal body; fine appearance; 40 degree - 57 degree wide angle field of view; high brightness observation is very comfortable ;you will obtain more details that you have never seen before.3x Barlow triples the magnification of any 1.25” eyepiece; Compatible with most 1.25 Inch diameter telescope eyepieces.
• Standard 1.25" eyepiece;Equipped with a precision-made standard 1.25-inch lens barrel that is compatible with any telescope that accepts 1.25-inch eyepieces; SV135 rubber eye guard for comfortable viewing and blocking stray light.
• Compatible with Celestron; Orion;and most brands of telescope; full unit increases magnification of eyepiece by 3x. For owners of fast short focal length telescopes;It not only increases the magnification;the image will be clearer than the average increase in magnification up to 15 times the image clarity