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Professional-class binoculars in time for summer--- Introducing the Nikon 18x70IF WP WF

May 1997

18x70

In time for summer, Nikon presents the 18x70IF WP WF binoculars suitable for astronomy, surveillance, navigation, and other specialized applications.

Professional appeal

Specialized binoculars for the rigorous demands of astronomy, surveillance, and navigation requires durability and wide field of view at high magnification.
Also, demand for high-magnification widefield binoculars is increasing, as witnessed by the popularity of observing the HYAKUTAKE (1996) and HALE-BOPP (1997) comets.

The Nikon 18x70IF WP WF binoculars, featuring 18x high magnification and 72° wide apparent field of view (index of visible viewfield angle) accommodate such demands for high precision.
Moreover, they are waterproof and highly reliable for use under such severe conditions as wind, rain, and night dew.

Major features

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.

Specifications

Magnification 18x
Objective diameter 70mm
Angular field of view (real)
Angular field of view (apparent) 72°
Field of view at 1,000m 70m
Exit pupil 3.9mm
Relative brightness 15.2
Eye relief 15.4mm
Close focusing distance 81m
Weight (approx.) 2,050g
Length 293mm
Width 234mm
Pupil distance 53 to 78mm

The information is current as of the date of publication. It is subject to change without notice.




© 2008 Nikon Corporation