Advanced Optical Accessories: The use of aluminum allows for a longer service life; it with less distortion in the field of view; providing the best in high performance and clarity with low chromatic aberration; giving a virtually distortion-free image
52 Degree Wider Field of View: 56mm focal length for low magnifications and an excellent overview; 52 degree field of view-enjoy observing a large section of the night sky; providing a broader perspective
Fully Mutiple Coated HD Optical Glass: Multi-coating to prevent unwanted reflections; thus reducing chromatic aberration and increasing lens transparency for a bright clear view and impressively high contrast
Universal 2" Compatibility: Perfect fit for 2 inch telescope eyepieces; barlow lenses; diagonal prisms; T-adapters; focusers and other 2 inch telescope accessories; ensures seamless protection across your observation equipment
Dustproof: Dual-layer protection with 4 dust caps and 4 plugs; shields lens surfaces from airborne particles; fingerprints and accidental scratches; maintains optical clarity for planetary and deep-sky viewing