SVBONY SV158 Extension Tube
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The SVBONY SV158 is a 2-inch barrel extension tube designed to add 55mm of optical length to your telescope setup, with a total physical length of 90mm. It is built to help astrophotographers and visual observers achieve precise focus by extending the distance between the focuser and eyepiece or camera. Overall, it offers a straightforward and affordable solution for those struggling to reach focus with standard equipment.
Key Features & Specs
| Optical Length | 55mm of usable optical extension |
|---|---|
| Total Length | 90mm overall physical length |
| Barrel Size | Standard 2-inch (50.8mm) barrel for broad compatibility |
| Material | Metal construction with a anodized finish for durability |
| Compatibility | Fits standard 2-inch focusers commonly found on refractors, reflectors, and SCTs |
| Use Case | Designed for both visual observing and astrophotography focusing adjustments |
| Brand | SVBONY, a manufacturer known for budget-friendly telescope accessories |
Best for: Amateur astronomers and astrophotographers who need an affordable, reliable way to achieve proper focus when their telescope's focuser travel is insufficient for their eyepiece or camera setup.