This scope is optimized to provide you with the sharpest images available. Features: ED objective lens Fully multi-coated optics Magnesium alloy body Dual focus Rotating tripod mount with detents, 16-48x zoom eyepiece Standard 1.25" eyepiece mount T-adapter ring Sliding sunshade with sighting lineCalifornia Residents: Proposition 65 Warning - www.P65WARNINGS.ca.gov