Main points:

Fully multi coated 50 degree ultra wide long eye relief eyepiece

Wide 50 deg apparent field makes it very easy to get on target when switching eyepieces

Multi element design delivers sharp images with good color correction and contrast

Aluminum 1.25" eyepiece barrel is internally blackened to eliminate light scattering

The collapsible rubber eye guard to block out light and to accommodate persons with glasses

Edge-blackened optics and advanced multi coated optics

Threaded to accept 1.25" filters

Specifications:

Brand: Datyson

Origin: Jieyang City, Guangdong Province, China

Focal length:20mm

Barrel size: 1.25"/31.7mm

Apparent field of view:50 degree

Optical structure: PLOSSL

Lens material:optical glass lenses

Filter threads:M28X0.6mm

Coating:fully multi coated broadband green

Rubber eye guard:yes

Net weight: 73g

Gross weight: 103g

Package Includes:

• 1x 20mm eyepiece