A great unit for both astronomical and long-range terrestrial use, the military-specification Fujinon 10x70 FMT-SX Poseidon Binocular transmits 95% of the light reaching the binocular, and has Fujinon's EBC multicoatings upon every optical surface. It is also equipped with eyepieces that accept optional polarizer, nebula, haze, and ND (neutral density) filters as your observing needs require.
The 100% fogproof and waterproof 10x70 Poseidon withstands drastic temperature and humidity changes with ease, has abundant eye relief for use with eyeglasses, and is a great astronomical binocular for anyone under 40 with eyes young enough to take advantage of the 7.0mm exit pupil diameter.