For sharp images when observing nature during day or night, the Celestron Regal M2 Spotting Scope features an Extra-Low Dispersion (ED) objective lens with fully multicoated optics and an XLT lens coating. The sliding sunshade with sighting line helps keep stray light out and moisture off of the objective lens, and dual focus offers quick and easy focusing between course focus for rough adjustments and fine focus for detailed adjustments. Nitrogen purged and waterproof to deliver long-lasting use in the field. Includes a soft carrying case for easy transport.