Elcan

Elcan Anti-Reflection Device SpecterDR 1x-4x, Color Black   ARD-SDR-B   Black Honeycomb Grid fits into the barrel of the objective lens. This prevents light from striking the objective causing glare.  

Elcan Anti-Reflection Device SpecterDR 1x-4x, Color Tan   ARD-SDR-T   Black Honeycomb Grid fits into the barrel of the objective lens. This prevents light from striking the objective causing glare.