Cuts blue light that is predominant in dusty, hazy conditions. You'll see sharper details and brighter, better defined images. It also brightens a dull image on a cloudy day and darkens soft gray shadows for better contrast. The Intensifier YL also eliminates the violet and blue light rays seen in a halo at the edge of black areas of a target. You'll see a crisp black edge of both target outlines and bullet holes in paper. It even makes game animals easier to spot from cover on bright and hazy days.

Warning will only fit 2004 (Just 1") and newer Leupold scopes