SVBONY Telescope Eyepiece 40mm 1.25 inches Plossl Telescope Lens Fully Multi Green Coated Metal 40 Degree Apparent Field 4 Element Telescope Accessory for Astronomy Telescope
Brand: SVBONY
The SVBONY super 1.25" 40 mm plossl eyepiece engineered with high quality 4 element design and offers a generous 40 degree apparent field of view
perfect for broad field lunar observations;medium sized star clusters;provide a wide range of cloudy nebulas and deep sky targets

The built in rubber eye guard enhances viewing by helping to block out ambient light and position
no introduction of additional color for higher magnification;highly achromatic;enhance the details of planetary filters

Lens edges are blackened to reduce scattering of stray light and maximize contrast;
the lenses are mounted in black anodized aluminum housings with a 1.25" diameter barrel for durability and precision fit

Features a precision made standard 1.25" barrel for any 1.25'' diameter telescope;
1.25'' astronomy filters and fold down rubber eyeguard for comfortable viewing as well as blocking stray light

Main features:
Fully multi coated offering the best image
Fully metal 1.25" plossl 40mm multicoated eyepiece
2 set of 4 slices of multilayer film gluing lens
Full metal;soft rubber eyeguard
Packed in a protective plastic case
Inside of the adapter is fully threaded to minimize reflections

Specifications:
Type: Plossl eyepiece
Focal length: 40mm
Barrel size: 1.25" /31.7mm
Apparent field of view: 40 degree
Filter threads: M28.5x0.6 for standard 1.25” filter
Coatings: fully multi coated
Lens elements: 4
Lens groups: 2
Blackened lens edges: yes
Height: 79mm/3.11in
Rubber eye guard: yes
Net weight: 82g/2.9oz

Package includes:
1x1.25" plossl 40mm multicoated eyepiece
Engineered with high quality 4 element design and offering a generous 40° apparent field of view;perfect for broad field lunar observations;medium sized star clusters;provide a wide range of cloudy nebulas and deep sky targets
Soft rubber eye guard that is custom fitted with a bayonet mount and folds down for the convenience of eyeglass wearers and protects glasses from getting scratched
Fully coated eyepieces with all black interior design;no introduction of additional color for higher magnification;highly achromatic;enhance details of Jupiter;Saturn;Mars;Venus and planetary filters
Features a precision made standard 1.25" barrel for any 1.25'' diameter telescope;1.25'' astronomy filters and fold down rubber eyeguard for comfortable viewing as well as blocking stray light
It's a great birthday christmas gift