SVBONY Telescope Eyepiece FMC Broadband Green Film Telescope Accessory 1.25 68 Degree Ultra Wide Angle Bundle with SV216 2X Barlow Lens, 1.25inch FMC 4-Elements APO Apochromatic Barlow

SVBONY Telescope Eyepiece FMC Broadband Green Film Telescope Accessory 1.25 68 Degree Ultra Wide Angle Eyepiece Set for Astronomical Obervation(6mm 9mm 15mm 20mm) SVBONY SV216 2X Barlow Lens, 1.25inch FMC 4-Elements APO Apochromatic Barlow, Double Magnification Telescope Accessories for Planetary Visual and Photography

• Super wide 68 degree apparent field of view;gets broad field observations for amazing observing experience
• Fully multi coated lens;broadband green film optical glass increases light permeability for sharp images
• Multi-element design delivers sharp images;highly achromatic with good color correction and contrast
• The SV216 Barlow lens adopts a 4-piece telecentric design; which effectively prolongs the focal length of the primary mirror without introducing chromatic aberration and vignetting problems that bother users; offers excellent spherical aberration control;
• The magnification of the SV216 Barlow lens is constant at 2 times; the 4-piece design of the Barlow lens and the optimized optical structure ensure that the magnification factor of the Barlow lens remains unchanged no matter where the Barlow lens is installed in the optical system