Athlon Optics 312006: 22X Eye Piece with Mil Reticle

Extra-Low Dispersion glass gives you an image with little or no chromatic fringe so the final result brings an ultimate clearest and sharpest image XPL Coating gives you an extra protection on the exterior lenses from dirt, oil and scratches Advanced Fully Multi-Coated lenses bring you better light transmission to bring optimum brightness and true color Argon Purging uses the inertia gas with bigger size molecules to purge any moisture out of the tube giving you better waterproofing and thermal stability Limited lifetime warranty