Altair 9x50 mm Straight Thru Finder with non-rotating helical focuser (incl. eyepiece and illuminator)

Starwave 50mm Straight Through Finder Scope with an indexed non-rotating, helical micro-focuser. A 23mm illuminated reticule eyepiece is included with a variable brightness illuminator unit. Focal length is 206.6mm (F4.1) and the magnification with a 23mm eyepiece is 9x. The focuser has a 1.25" ID push-fit adapter with brass compression ring, allowing use of 1.25"  eyepieces or auto-guiding cameras.   The indexed micro-focuser can be locked, enabling the eyepiece or camera to set at the correct focus-point. Because the focuser does not rotate, the eyepiece reticule or guide camera is easier to focus and maintain alignment on-target.   The rear of the focuser also includes a T2 thread to allow the addition of extensions.  The finder stalk is compatible with most finder scope brackets on the market but also includes a universal finder bracket (product code UNIFBR) with a cross-slotted hole pattern to fit most telescopes.     Included in the box:  50mm finder scope optical