Kowa Spottingscope TSN-663M Prominar

These high performance models are the perfect fusion of compactness and high optical performance. This series satisfies the needs of a wide range of users from beginning bird watchers to scientists and professional researchers. XD lens optical glass with extra low dispersion. The lens has been developed as an alternative material to pure fluorite crystal. XD lens can reduce chromatic aberration, although to a lesser extent than with fluorite crystal. KR coating protects the lenses from dirt and other foreign residue that may affix to the lenses during normal use. Even in cases where the lens is accidentally touched, fingerprints or oil can easily be removed through proper lens cleaning methods. MC coating all lenses, prisms and dustproof glass are fully multicoated, ensuring sharp images and a clear visual range. WP structure, filled with dry Nitrogen gas to prevent the lenses from fogging.