Nikon Reading Field ST series 7-15x35CF Zoom Binoculars

The black 10-22x50 Aculon A211 Binocular from Nikon is a handheld zoom optic with multicoated aspherical lenses and an ergonomically designed housing. For the redesigned Aculon series, Nikon packages the Aculon A211 binoculars with environmentally friendly Eco-Glass elements composed of responsibly-sourced arsenic-free material. The Aculon binocular's Porro prism design delivers enhanced depth of field, and its multicoated aspheric optical path with 50mm objective lenses deliver the image clarity, twilight performance, and flat FOV demanded by nature observers.

Also new to the 2013 version of the Aculon binocular is a sculpted rubber-armored housing that is designed to fit comfortably into the observer's hand and provide non-slip handling. Grooved ridges atop the housing and a generously-sized focusing wheel enable adjustments to the interpupillary distance and the point of focus even while wearing gloves. The lever located next to the right eyepiece puts control of the 10x to 22x magnification range at the observer's fingertips. The combination of image quality and user-friendly design make the 10-22x50 Aculon A211 a cost-effective option for intermediate to long-range glassing.

Optical Performance

• 10-22x magnification, 50mm objectives
• Arsenic-free Eco-Glass elements
• Multicoated optics, BaK-4 Porro prisms
• 36.7° apparent viewing angle at 10x
• 8.6mm eye relief at 10x, 5-2.3mm exit pupil

Use and Handling

• Fingertip-accessible zoom lever
• Center focus wheel
• Fold-down rubber eyecups
• Included tripod mounting adapter

Construction Details

• Ergonomic sculpted rubber armoring
• Black housing finish
• 33.9 oz (961g) weight