60mm/240mm Guide Scope Finderscope for Monocular Astronomy Telescope

1. Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars; will help guide you to capturing higher quality astrophotos;an Perfect addition to any astrophotographers collection of gear.2. The helical focuser simply moves the attached device inwards or outwards while maintaining its orientation;this convenient feature means your field of potential guide stars will not rotate as focus is adjusted, further increasing ease of use.3. for those nights when you don't plan to capture astrophotos exposures, this versatile Guide Scope can double as a straight-through finder scope;For example, inserting a 25 mm eyepiece creates a 9.6x60 finder scope, or you can insert one Illuminated Centering Eyepieces for use as a finder with illuminated crosshairs for easy aiming.4. The focuser boasts 8 mm of precise helical focus travel;plus telescoping drawtube housing provides up to 35mm of additional back-travel if needed for your particular autoguider device;No extension tubes necessary; a compression ring fitting keeps any inserted autoguider cameras or eyepieces of pesky scratches.5. The Multi-Use Guide Scope with Helical Focuser also features male T-threads on the focuser collar for secure threaded attachment of guide cameras equipped with female T-threads.Aperture: 60mm / 2.36 inchFocal Length: 240mm /9.45 inchCoating: Fully multi-coatedBest for imaging: Deep skyFocuser: Helical Focuser with 10 mm TravelConnection to eyepiece: 1.25 inchfor CCD focusing, QHY5II, QHY generation, STI, DMK, ZWO, SG4Material:Aluminum alloycolour:blackPackage Contents:1 * Finder ScopeOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.