Focal Eyepiece for Standard inch Astronomy Filters

Description: 1.25 inch 40mm low power Plossl eyepiece, gives the widest viewing field along with extra sharpness and long eye . 4-Element Plossl design, has a approx 52 degree AFOV. Threaded for 1.25 inch astronomical filters.

Comes with sturdy and rubber -protect the eyepiece ...Description: 1.25 inch 40mm low power Plossl eyepiece, gives the widest viewing field along with extra sharpness and long eye . 4-Element Plossl design, has a approx 52 degree AFOV. Threaded for 1.25 inch astronomical filters.

Comes with sturdy and rubber -protect the eyepiece from dust and moisture. Full metal, soft rubber . Specification: Type: Plossl Eyepiece Focal Length: 40mm Barrel .25 inch (31.7mm) Apparent Field of View: 40-Deg Filter Threads: .5*0.6 (for Standard 1.25 inch Filter) Coatings: Fully Multi-Coated Lens Elements: 4 Lens Groups: 2 Lens Edges: Yes Rubber Eye Guard: Yes Package Includes: 1 Piece 1.25 inch Plossl 40mm Multicoated Eyepiece