SV108 Double Helical Focuser has a high-strength aluminum alloy material with a matte surface and black anodizing treatment. Its inner diameter is attached with brass compression ring to protect the eyepiece from scratches. High quality and high precision are worth your possession.
|Interface||1.25 inch w/ M42*0.75 male thread|
|Primary Mirror Interfaces||M42X0.75|
|Net weight||102g / 3.9oz|
1. Svbony SV108 High Precision double helical focuser is designed for guider scope / finder scope/ telescope tube
2. The body is made of full metal, this will extend the long lifetime using
3. The interface thread is 1.25" with M42*0.75 male thread. and it could extend 10mm backing focus length, as the minimum length is 56mm, so the longest length is 66mm
4. The accuracy is 0.1mm, which could make sure the correct precise adjustment