monocular

Apresys monocular APO83 for bird watching
Description:
high-quality ED lens material imported from Ohara co. Japan, high accuracy grinding technology processed in Taiwan, to ensure perfect color correction, to achieve higher degree of color contrast and color restoration, lens separation design, all optical components by total broadband multi-coated high-level and sharp, bright and transparent view,

Features:
All-metal structure, to ensure product durability.
The outer surface of rubber armor to provide a solid grip handle, while effective against external damage
Waterproof design, effectively prevent the rain and mist, dust, etc.
Big round hand wheel, ensure precise focusing, convenient, comfortable feel.
Multi-angle bracket, 360-degree rotation, easy to use
Lens cover, designed effective shading when needed
with sight, to facilitate search and locate targets
8 pieces 5 groups optical design, good zoom eyepiece, eyepiece provides extremely low distortion, sharp edges and the center also provides excellent optical performance and large eyepiece, wide field, grow great viewing pupil designed to provide convenience
Excellent eyepiece bayonet reasonable design, easy assembly and disassembly eyepiece, while with the eyepiece locking mechanism to ensure the safety eyepiece will not fall.

Technical parameters:

Magnification 25 - 75x83
Objective type Doublet,fluoro glass,apo
Field of view(degrees) 42°×(25x)-66°×(75x)
(ft/1000yds)(n/1000m) 15.5m/46.5ft(75x)
Obj.lens aperture ¢ 83mm
Zoom eyepiece structure 8 / 5
Lens focal length 562.1mm
Field of view at 1,000m 122 m
Zoom eyepiece focal length 22.6mm ~ 7.63mm
Actual field of view 1.7 degrees to 0.9 degrees
Visual field of view 42 degrees ~ 66 degrees
Near focus(m/ft.) 7m/21ft
Field of vision at 1000 m / 1000 yards 29.5mm ~ 15.5/88.5 ft ~ 46.5 ft
Exit pupil parameter ¢ 3.3mm ~ ¢ 1.1mm
Minimum focal length 7m
Coating Super stm coated
Weight 2450g
Length 520mm
Nitrogen-filled waterproof, fog-free, shock resistance