Heritage BASE 10x40 RETRO Binoculars

Heritage BASE 10x40 RETRO Binoculars

Binoculars with a robust metal construction, designed for extended field observation. They feature 10x magnification, a 40 mm objective lens, and Russian BK10 optics with multi-layer coating to provide a wide field of view and fast, precise focusing.

Their aluminum alloy body helps protect the optics against vibrations, shocks, and drops. The joints are sealed to protect the instrument from dust and moisture, and the assembly is prepared to work across a wide temperature range.

• Prism type: Porro
• Magnification: 10x
• Objective lens diameter: 40 mm
• Optical material: Russian BK10 optical glass
• Lens coating: anti-reflective multi-coating on all optical elements
• Eyepieces: 5 elements
• Objectives: 2 elements
• Exit pupil: 4 mm
• Eye relief: 12 mm
• Resolution threshold: 4.7 arcseconds
• Field of view: 6.5°
• Field of view at 1,000 m: 114 m
• Minimum focus distance: 4 m
• Diopter correction: ±3 diopters
• Interpupillary distance: 56–74 mm
• Focus: central
• Eyecups: rubber
• Body: aluminum alloy
• Operating temperature range: from -40 °C to +50 °C

Package contents: binoculars, protective eyepiece caps, synthetic leather carrying case, neck strap, user manual, and lifetime warranty.