The Multi-Use Guide Scope has a large, 60mm aperture lens for better light-gathering than 50mm and smaller models. The larger aperture lets you see more stars in the guide scope field-of-view, providing a wider selection of guide star choices. What’s more, the larger lens means the field of potential guide stars will be nice and bright for easy guide star selection. This Guide Scope is designed for use with small-chip autoguider devices such as the Orion StarShoot AutoGuider, Orion StarShoot AutoGuider Pro Mono Camera and many other Autoguiding cameras. (AutoGuiders and telescopes sold separately).
As its name suggests, the Orion 60mm Multi-Use Guide Scope with Helical Focuser features a built-in helical focuser that allows precise focus adjustments with zero flexure for rigid performance. Obtaining a clear, sharply focused view of potential guide stars is quick and easy with this sturdy scope. The fixed-orientation focuser mechanism will not rotate inserted autoguider cameras or eyepieces when focus adjustments are made. 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.
The f/4, 240mm focal length Orion 60mm Multi-Use Guide Scope features a machined, knurled ring to make fine focus adjustments nice and easy, while a thumbscrew lets you lock-down the focuser in-place once adjustments are complete. The focuser boasts 10mm of precise helical focus travel, plus a 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 free of pesky scratches. The Orion 60mm 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.
This complete guide scope comes with two heavy-duty guide scope rings and a 3.5″ long (8.9 cm), 1.18″ (3cm) wide dovetail mounting bar, which is compatible with all Orion dovetail finder scope bases for easy attachment. The dovetail bar features five threaded through-sockets for versatile attachment options. The included guide scope rings feature six nylon-tipped thumbscrews for precise aiming.
For those nights when you don’t plan to capture astrophoto exposures, this versatile Guide Scope can double as a straight-through finder scope with an optional 1.25″ eyepiece installed. For example, inserting a 25mm eyepiece creates a 9.6×60 finder scope, or you can insert an Illuminated Centering Eyepieces for use as a 12×60 finder with illuminated crosshairs for easy aiming.