This large-aperture straight-through finder scope pulls in more light than a smaller 30mm finder, which helps to find fainter objects in the field of view. It has a multicoated 50mm achromatic objective lens with adjustable focus, as well as 9x magnification and a standard (inverted) 5.5° field of view with superimposed crosshairs. 9x magnification provides a bit more resolution over a 7x or 8x finder, while still providing a wide field of view to help locate objects. The aluminum tube is also baffled and blackened internally to enhance contrast, critical when trying to view faint objects which aren't much brighter than the background sky.

The finder scope's focus can be adjusted by loosening the knurled lock ring just behind the front cell, then rotating the cell either way as needed until focus is reached. The lock ring is then retightened against the cell.

This finder comes with a cast-aluminum bracket with a dovetail foot that fits most Orion telescopes. A dovetail mounting base is also available separately for installation of this finder scope on non-Orion telescopes. Alignment of the finder scope is easy and intuitive by virtue of two perpendicular nylon thumbscrews and an opposing spring-loaded pin. The outside of the optical tube is painted silver, and the unit weighs 16 oz.

Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.