The illuminated reticle of the Explore 8x50 Right Angle Viewfinder is etched to with star patterns for polar aligning in both the Northern and Southern hemispheres.. The deep red illumination is continuously variable to provide the desired brightness. The Explore Scientific 8x50 produces a wide 6° field of view and allows precision focus of both main objective and eyepiece illuminated reticle. A precision polished roof prism produces images that are right-side-up, left-to-right correct. In other words, things are not upside-down and backwards like most viewfinders.