BlattWorld, Item Details: Nikon 18x70 Astrolux XL

18x high magnification, 72° wide viewfield These binoculars are suitable for astronomy, surveillance, navigation and other professional and specialized applications.
Long eye relief design for wearers of eyeglasses Eye relief (distance between eyepiece lenses and the eyepoint where the entire field can be viewed without vignetting) is 15.4mm long for a wide viewfield when wearing eyeglasses.
Bright viewfield Large 70mm diameter objectives and multilayer coating applied to all lenses and prisms increase light transmittance, ensuring a bright field of view.
Waterproof for use under such severe conditions as rain, wind, and night dew The nitrogen gas-filled body prevents the binoculars from fogging that can otherwise result when binoculars are exposed to sudden changes in temperature.
Secure viewing Rubber ring prevents the dioptre adjustment ring from slipping when exposed to moisture and perspiration.

Nikon 18x70 Astrolux XL