The Hutech Deep Sky Binoculars are 22x100 light-weight binoculars tailored for deep sky observers featuring: Built-in 24mm LPS-P2 light pollution suppression filters for enhanced contrast nebula viewing in light-polluted skies LPS filter can be conveniently switched in or out by rotating a dial Fully multi-coated objectives User-friendly, field-collimatable design BAK4 Porro prisms 18mm eye relief 3.5 kg (7.7 lbs) weight Carrying case Tripod adapter