SVBONY 68 degree ultra wide long eye relief eyepiece with a comfortable wide field for planetary observing,Super wide 68 degree apparent field offers expansive views of the moon star clusters;and the Milky Way.It helps gets sharpness;high contrast and orthoscopic images;it can be used in any astronomical telescopes that fits for standard 1.25" eyepieces 68 degree ultra wide FOV Comfortable ultra-wide field that naturally more poerful to get bright and sharp viewing Fully multi coated lensHigh quality observation without introducing additional chromatic aberration;make image more sharper Broadband green film optical glass Chromatic corrected;high transmittance to achive clear and sharp viewing Interface with M42x0.75 thread: With T/T2(M42x0.75mm) male thread for T/T2 connectors. Barlow lens has a T mount adapter so you can attach a DSLR camera with an available T-mount Chromatic Aberration Image Completely multi-coated and pure optical glass lens for optimum image brightness high contrast.Clear and bright images can be obtained for moon, stargazing, etc. Cemented doublet optic structure reduce the chromatic aberration with the increase of magnification. The SVBONY SV131 1.25" Plossl 32mm Eyepiece uses premium optics that are fully multi-coated for crisp, clear images. The folding eyecup lets you view with or without glasses, works well for terrestrial observations as well as for views of the Moon, planets, and deep-sky objects Comfortable eye relief and FMC The exit distance of 19mm is convenient for customers to observe for a long time With the true FMC full broadband multilayer coating, it ensures a better image quality Matting treatment SV131 has two processes of matting thread and spray varnish, the lens edges are blackened to reduce scattering of stray light and maximize contrast Standard Plossl eyepiece structure 2 sets of 4-piece optical structures Engineered with high quality 4 element design and offering a generous 46° apparent field of view