The SVBONY SV230 is a universal astronomy wide angle zoom eyepiece designed for telescopes. It features a focal length range of 8mm to 20mm with a field of view of 57 to 72 degrees.
Focal length: 8mm-20mm
Field of view: 57-72 degrees
Lens size: 1.25 inches and 2 inches
Pupil exit distance: 17-19mm
Barrel material: stainless steel
Filter thread: M28.5x0.6 and M48x0.7
Number of groups/elements: 6/9
Outer diameter: 60mm
Height: 132mm
Net weight: 500g
Day and night use
Supports excellent resolution and contrast values
Clear images in a large field of view
Flush focus throughout the entire zoom range
Wide focal length range allows use on many instruments
9-element, multi-layer coated optics
Smooth zoom action with stops at 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 and 24mm
72-degree field of view at 8 mm, 57-degree field of view at 20 mm
17-19mm eye relief and adjustable rubber eyecups
Includes 1.25-inch and 2-inch lens barrels with threads for filters
Packing List: Eyepiece x 1, Soft bag x 1, Dust cover x 3
