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.
All of the 20mm Leupold Accessories (Flip-Back Covers, RainCoat Kit and Yellow Intensifier) will only fit the 1” scopes. They are to small to fit the 30mm riflescopes (European, Mark 4 MR/T and Leupold VX-III 30mm).