Features:
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Focal Length: 120mm
The objective lens diameter is 30mm. The focal length of the scope is 120mm. F4 aperture optics provides a wide field of view which will help to quickly find the target when performing astronomical observations.;
1.25-inch & M42*0.75
The 1.25-inch interface and M42*0.75 male threads allow to connect with SVbony SV305, ZWO, Orion, QYH and other auto guiding cameras.;
Fully Broadband Multi-Coated
Fully broadband multi-coated optics means the types of coating on all optical surfaces throughout the entire scope. And fully broadband multi-coated optics decreases surface reflectivity therefore allows greater optical through-put across the entire visible light spectrum, increases the light transmission and delivers bright, clear and high-contrast images.
Helical Focus Stroke: 45mm
The 45mm focusing stroke ensures enough focusing range for observing and focus lock ensures a stable focusing. The built-in helical focuser is better for precise focusing of potential guide stars.
Ultra-mini Optics
The guide scope is ultra mini and light, and won’t weight your telescope and mount much.;
High-quality Craftsmanship
High-level CNC machined & Sandblasting Oxidation
Imaging telescopes or lenses: AstroTech AT115EDT Scope Imaging cameras: ZWO 294 MM PRO Imaging Camera Mounts: Celestron AVX Mount Guiding telescopes or lenses: SvBony 30 mm f/4 guidescope guide scope Guiding cameras: asi zwo 120 MC-S Guide Camera Focal reducers: Astro Tech 0.8x Reducer/Flattener AT0.8x Software: NINA,PhD2,PixInsight,CPWI Filters: Chroma O3 3nm filter · Chroma Ha 3nm 31mm filter · Chroma S2 filter Accessory: ZWO EFW 2" Wheel · Thousand Oaks Dew Controller Heater · ZWO EAF Focuser |