You will never go back to using just one finder scope again
Use any combination of two aiming devices you wish including finder scope; red dot reflex sights; green laser pointer brackets; mini guide scopes; and more
Great for both visual observers and astrophotographers
9x50 finder scope with 50 mm objective lens diameter; brighter DSOs directly visible
Folder fits onto most telescopes; easy focusing at the objective lens; Adjustment of finder scope alignment via two screws and spring