The SV181 rack and pinion focuser is suitable for 114mm and 150mm Newtonian reflector telescopes. It accepts 1.25” (32mm) eyepieces and is all metal, including focus wheels. The focus travel of 65 mm.
MAIN FEATURES
- 1.25” eyepiece diameter (does not accept 2 inch)
- Allows you to adjust the focal length by gear more precisely
- Internal brass ring to hold the 1.25″ eyepiece inside to eliminate markings on the eyepiece barrel.
- The interior of the item is fully threaded to minimize reflections.
- Glossy, flat black threaded interior ensures excellent contrast
- Anodized aluminum process and metallic construction; durable for long time use.
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