The SVBONY SV191 telescope eyepiece is a super wide-angle zoom 1.25 inches, allowing for magnification adjustment without changing eyepieces.

Features

• Focal length: 7.2-21.6 mm
• Eye relief: 18-20 mm
• Apparent field of view: 42°-65°
• Field ring diameter: 16 mm
• Barrel size: 1.25 inches (31.75 mm)
• Lens structure: 7 elements in 4 groups
• Filter thread: M28.5 x 0.6
• Coatings: Fully multi-coated
• Blackened lens edges: Yes
• Eyecup: Twist-Up
• Eyecup material: Metal