2inch F30mm Ultra Wide Angle 80 Degree Telescope Eyepieces+Thread for Camera

Description

Features:
New Ultra black design, fully multi-coated
30mm focal length, 2" fitting diameter
This superb ultra wide angle eyepiece has 80 degree field of view
Standard female thread to fit a filter etc at the rear end and there is M49 thread for camera
5 Elements Optical Design
The inside of the adapter is fully threaded to minimize reflections
Coma-free View out of 75% of the field radius
Great Contrast and Color Correction
Very unique feature : underneath its soft rubber eyecup, there is a thread for a 49mm camera
Packed in a protective plastic case
Specifications:
The structure of the optical system: Ultra Wide Series Eyepiece
Barrel Size: 2" (50.8mm)
Angle field of View: Ultra wide 80 degree
Optical Design: 5 Elements
Focal Length: 30mm
Eye-relief: 22mm
Coating: Fully coated Broadband Green Film
Threaded for filters and Barlow lens: 2 inch
Material: Glass + Metal
Color: Ultra black design
Net Weight: 18.17oz/516g
Total Height: 11.4mm
Note: underneath its soft rubber eyecup, there is a thread for a 49mm camera
Package Include:
1 x Fully Black 2" F30mm UW80 Eyepiece