Orion 60mm Multi-Use Guide Scope with Helical Focuser Versatile 60mm aperture Guide Scope with a built-in helical focuser for precise focusing of potential guide stars Designed for use with the Orion StarShoot AutoGuider and StarShoot AutoGuider Pro (both sold separately) Helical focuser collar will not rotate attached autoguider devices during focus adjustments Can also be used as a deluxe straight-through finder scope with optional 1.25" eyepieces installed (eyepieces sold separately) Weighs just 2 lbs., 0.1 oz.