SVBONY 25mm Telescope Eyepiece, Large Aperture Eyepiece, 40 Degree Field of View Plossl Eyepiece with Filter Threaded for Observing Moon Planetary Binary

Standard 1.25"" tube eyepiece; fits any 1.25"" telescopes and telescope accessories astronomical equipment; M28.5x0.6mm filter threads; 1.25” telescope filter can be installed to enhance the contrast of the image. 40-degree field of view plossl eyepiece; provides a wide field of view; allows you to observe the interior of bright nebulae makes acquiring and centering objects of interest a breeze. FMC lens; full multi-layer coating; reducing light loss; FMC telescope eyepiece allows you to image clearer and brighter in low-light conditions. Edge black optics; black edges and black interior of eyepiece are black-treated to reduce stray light scattering and maximize contrast. 25mm focal length eyepiece; provides moderate magnification; for observation of lunar planetary binaries. Comes with plastic case; sturdy plastic housing protects eyepieces from dust and moisture. Anti-slip rubber grip ring; grip on the rubber ring protrusion; enhance friction; effectively prevent the eyepiece from falling off