The SVBONY SV135 1.25 inch 7-21mm Zoom Eyepiece is an optical accessory designed for telescopes. It allows users to zoom between focal lengths of 7mm to 21mm.
Product type: Accessories
Compatibility: telescopes accepting 1.25 inch eyepieces
Material: optical glass
Key feature: fully multi-coated lenses
Color/Variant: black
Intended use: everyday use
Focal length: 7-21mm
Zoom type: linear
Lens structure: 6pcs / 4 groups
Eye protection: 18mm-16.3mm
Pupil spacing: 15mm
Field of view: 57-40 degrees
Coating: fully multi-coated green
Tube size: 1.25 inch
Thread size: M28.5 x 0.6
Overall length: about 93mm
Net Weight: about 133g
Comfortable 18mm-16.3mm relief, suitable for eyeglass wearers
