Alwaysonline Eyepieces Lens Optical Glass 1.25in Eyepiece FMC Green Film for Nebula Observation

Giới thiệu Alwaysonline Eyepieces Lens Optical Glass 1.25in Eyepiece FMC Green Film for Nebula Observation

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1. 66 Degree Wide Angle: 20mm focal length, and the wide angle eyepiece has a 66 degree field of view, gives you the widest viewing and bring the distant scene in front of you.
2. Optical Glass Lens: 5 optical glass in 3 groups. With excellent image contrast and light transmission; high brightness, large field of view; keep your eyes in a comfortable state.
3. FMC Green Film Coating: Multi layer high definition broadband green film optical glass lens, chromaticity correction; provides high permeability to ensure clarity; clear scenery.
4. Standard 1.25inch Interface: Suitable for any 1.25inch/31.7mm aperture eyepiece interface. In a threaded design, which is easy to connect to other adapters.
5. Applicable Scene: The lens is suitable for viewing scenery, bright celestial observation, nebula, etc., and it is also Halloween birthday Christmas gift for family and friends.

Specification:
Item Type:  Eyepiece
Material: Aluminum alloy, optical glass
Gross Weight: 125g / 4.4oz
Focal Length: 20mm / 0.8in
Field of View: 66 degrees
Lens Coating: FMC green film
Number of : 5 elements in 3 groups
Connector Size: 1.25 inches (31.7mm)
Anti Slip Design: Yes
Thread Specification: M28.6x0.6mm

Package List:
1 x  Eyepiece2 x Dust Cover

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