God rays, volumetric light, visor reflections / water drops, lens flares, depth of field, night & thermal vision scopes, dynamic wet surfaces with reflections, rainbows and many other effects. BETA UPCOMING!
Due to public demand I made the night vision effect apply on the binocular as well (can be disabled though).
On this short vid you see the binoc in action with a green NV at medium brightness.
Color, brightness, contrast, and light sensitivity are configurable.