Orion 07212 9x50 Right-Angle Correct-Image Finder (Black) A powerful 9x crosshair finder scope with a comfortable right-angle viewing orientation 50mm diameter lens provides a bright image through the finder for easy aiming anywhere in the sky Right-angle design lets you use the finder without crouching or craning your neck in an awkward position Internal correct-image prism provides a daytime oriented view through the finder - not upside down as with standard finders Fully coated glass elements minimize reflection to yield crisp, bright images with a 5 degree field of view