Zoom Eyepiece eliminates the need to change eyepieces so you can spend more time viewing the night sky instead of fumbling in the dark when you want higher or lower magnifications.
Manufacturers & Suppliers of Astronomical Telescopes Since 1976
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SVBONY SV135 7-21mm Zoom Eyepiece
Zoom Eyepiece eliminates the need to change eyepieces so you can spend more time viewing the night sky instead of fumbling in the dark when you want higher or lower magnifications.
| Model | SV135 |
| Zoon Type | Linear |
| Focal length | 7-21mm |
| Eye Relief | 18mm - 16.3mm |
| Lens Design | 4 groups/ 6 pcs |
| Interpupillary Dist | 15mm |
| Barrel Size | 1.25" |
| Field of view | 57~40° |
| Lens Coating | FMC |
| Rubber Eye Guard | Yes |
| Meterial | Metal +Optic Glass |
| Color | Black |
| Thread Size | M28.5*0.6 |
| Overall length | 93mm |
| Net Weight | 133g / 4.67oz |