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Advanced level of sturdiness and operability

Magnesium alloy is utilised, realising a sturdy, lightweight body that facilitates handheld viewing.
Employing Abbe-Koenig prisms enables a slim design that carefully pays attention to weight balance.

Long eye relief

Optical design that realises both a super-wide field of view and long eye relief. Eyeglass wearers can also enjoy a full, clear super-wide field of view.

Rubber eyecups are designed to be removed for cleaning eyepieces. Eyepiece frame is designed in a flat shape for easy maintenance of details.

Turn-and-slide rubber eyecups with six-click adjustment facilitate easy positioning

Click intervals become finer as the eyecups are extended, for easier adjustment by non-eyeglass users.

Straight helicoid dioptre adjustment ring

The dioptre adjustment ring employs a straight helicoid design. Eyepieces move back and forth in a straight line, and the lenses themselves do not rotate, ensuring the optical axis is not decentred during dioptre adjustment.

Thread for attaching filter

55mm filter (P=0.75) can be attached to objective lens.

All lenses and prisms are free of lead and arsenic

Under the Nikon Green Procurement Standards, we employ not only lenses and prisms but also body materials taking the environment into special consideration.

Waterproof and fogproof structure that withstands severe conditions

Waterproof structure that will not be affected if submerged in water to a maximum depth of 5m/16.4 ft for 10 minutes. (NOT designed for underwater usage.)

Airtight structure with a nitrogen-filled body that prevents the inside of the optical system from fogging and resists mould even with significant changes in temperature.

Wide operating temperature range of -20°C to +60°C/-4°F to +140°F enables use in severe conditions.