SVBONY SV198 Guide Scope Finder 50mm Compact Mini Guide Scope with Double Helical Focuser Telescope Accessories

★★★★★★★★★★★

We are selling from Japan. Our Products are Authentic only.

★★★★★★★★★★★ [Focusing Structure] It combines pull-out coarse adjustment and double helix fine adjustment. The coarse adjustment can lock the thread quickly. The precision double helix can focus accurately. The lock ring will not shake after locking, and the whole system is very stable. 【Optical Lens】50mm light guide lens, bright and wide field of view optical system, you can see many potential stars. Small and lightweight mini guide scope is perfect for guiding, searching, observing and sporting. 【Optical Glass and Processing Technology】SV198 light guide mirror adopts double rubber lens with full multi-coating. The edge of the lens is painted black. The lens barrel is made of aviation aluminum alloy and processed by CNC. The inside of the lens barrel is painted black to achieve a precise matte effect. [6-point light guide ring] The light guide mirror and main mirror can be conveniently adjusted for coaxiality, and the operation is flexible, making it ideal for beginners. 【Multiple Scenarios】Remove part of the lens barrel to provide a light path for the zenith lens and eyepiece. A 1.25" zenith mirror can be attached to visually track the stars. It can also be used as a right-angle upright optical finder (eyepiece and zenith lens sold separately). Features: 1. Versatile 50mm aperture guide scope with built-in dual helical focusers. 2. Helical focuser collar will not rotate attached autoguider device during focus adjustment. 3. Can also be used as a right-angle orthogonal optical finderscope (eyepieces and prism diagonals sold separately). 4. This compact and lightweight mini guide scope is perfect for guiding, searching, or finding. Specification: 1. Brand: SVBONY 2. Model: SV198 3. Optical System Type: Achromatic Refractor Telescope 4. Lens Structure: 2 Pieces/1 Group 5. Tube Material: Aluminum 6. Aperture: 50mm/1.97in 7. Focal Ratio: f/4.1 8. Focal Length: 206.6mm/8.13in 9. Coating: Fully Multi-Coated 10. Blackened Lens Edge: Yes 11. Focus: Dual Helical + Telescopic Design 12. Dual Helical Focuser Focusing Stroke: 11mm 13. Focusing Sheet Precision: 0.1mm 14. Rough Focusing Stroke: 38mm 15. Focusing Sheet Precision: 1 mm 16. Connection to eyepiece: 1.25" and T2 17. Basic installation type: Vixen standard interface 18. Color: White 19. Tube diameter: 55.5mm 20. Dew cap diameter: 58mm 21. Total length: 223mm 22. Net weight: Approx. 770g / 28.1oz Package Details: 1x SV198 50mm f/4.1 Mini Guide Scope 2-ring bracket with dovetail 1x Nylon-tipped thumbscrew 1x 1.25" dust cover 1x Lens cover