***** **********Best Quality Guranteed. *****Fully multi coated lens; all fully multi-coated for maximum contrast and resolution*****Super wide 68 degree view; greatly expanded our scope's capabilities*****Black anodized aluminum housings; internally blackened to eliminate light scattering and contrast*****Fold down soft rubber eye guard; block stray light also bring the convenience to eyeglass wearers*****Standard 1.25" filter; M 26.5 * 0.6 thread; It's a great Halloween birthday christmas gift