1.25" FMC 68 Degree Ultra Wide Angle Eyepiece for Astronomical Telescope 6mm/9mm/15mm/20mm

1.25" FMC 68 Degree Ultra Wide Angle Eyepiece for Astronomical Telescope 6mm/9mm/15mm/20mm

Features:

FMC 68-Degree Ultra Wide long eye relief eyepiece

Super Wide 68 Degree apparent field offers expansive views of the moon, star clusters, and the Milky Way

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

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

Threaded to accept 1.25" filters

Specifications:

Brand: Angeleyes

Focal length: 6/9/15/20mm

Interface: 1.25 "(approx. 31.7mm)

Angle field of view: 68°

Distance of exit pupil: 16 mm

Optical coating: FMC multi-layer coating, green purple coating

Optical design:

5 pieces in 3-groups(6/20MM)

4-pieces in 3-groups(15MM)

6 pieces in 4 groups(9MM)

Eye relief: 17 mm

Case material: Full Metal

Anti-slip design: Designed for safe handling even in wet conditions