Standard 1.25 inches;Quality SVBONY SV137 1.25-Inch 2x Barlow Lens doubles the magnification of any 1. 25" Eyepiece
Double glued lens set;The true FMC coating process ensures that each exposed air lens surface is fully broadband coated to ensure adequate transmission and image quality
The Edges of the lenses are blackened; The lens is matte blackened on the edges and matte painted on the inner walls; which can effectively suppress the stray light interference and reflection;and offer up bright sharp images;The large nut lock screw is convenient for quick insertion and locking
User-friendly design;Anti-slip ring design to prevent accidental drop damage; a pair of dust cover is provided to prevent foreign matter from entering the contact lens and prolong product life
Brass ring design;The built-in brass pressure ring on the eyepiece insertion end ensures that the inserted high-end eyepiece lens body surface is not accidentally scratched