Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars. Svbony SV106 Guide Scope can ensure that the main mirror accurately tracks the celestial body to be observed. This SV106 is used as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately) 1. Svbony SV106 Guide Scope is designed for use with the guider CCD astronomy camera or eyepiece. Helical focuser collar will not rotate attached autoguider devices during focus adjustments. This SV106 is used as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately) 2. Svbony SV106 60mm finder achromatic refractor with helical focuser 3. SV106 has FMC (fully- multi-coated) green coating, which can enhance the light transmittance and accurately track the celestial body being photographed Model F9177A Aperture 50mm / 1.97in Focal Length 190mm / 7.48in Focal Ratio F4 Coating Fully multi-coated Type of Telescope Achromatic Refractor Best for imaging Deep sky Focuser Helical Focuser with 8 mm Travel Connection to eyepiece 1.25inch Tube diameter 54.5mm Total Length 240mm Included accessories Tube Rings and Dovetail Rail Availability: Usually ships the next business day F9177BRegular price: $119.00Smart-Sale price: 888.291.6577 Located in Saint Augustine, FL 32095 By faith we understand that the universe was created by God's command, so that what is seen has been made from things that are not visible Copyright (R) 2019 SmartAstronomy, All rights reserved.