Helios Fieldmaster ED 20-60X85  DUAL FOCUSSER waterproof  Spotting Scope -HD Performance
 
  The new high-end Fieldmaster-ED85DS is perfect for the discerning birdwatcher and nature observer.
This refined instrument features a doublet objective lens which provides a highly corrected image and excellent optical performance. One Exotic ED (Extra-low dispersion) lens element is employed in its construction, which virtually eliminates chromatic aberration and delivers high-fidelity true-colour images.
Features high quality BaK-4 Prisms. Optics are fully broadband multi-coated throughout for maximum light transmission and contrast.
Features a precision 4:1 ratio dual-speed focuser for exceptional focusing accuracy.
The stylish spotting scope body is constructed from robust but lightweight magnesium alloy, with a sliding dew shield/sun shade.
Fully waterproof and nitrogen-filled for clear, fog-free viewing.
The supplied 7.5-22.5mm zoom eyepiece, constructed from 8 lens elements, provides a generous 20-18mm of eye relief and is suitable for use with or without spectacles.
Supplied with quality Stay-on case. 
 
FEATURES
 
Fully multi-coated optics
Doublet objective lens with ED glass
Precision 4:1 ratio dual-speed focuser
Extendable dew shield / sun shade
Eye relief 18-20mm
Nitrogen filled - waterproof and fog proof
What's in the box
Fieldmaster Spotting Scope
20-60x Zoom Eyepiece
Stay-on Case
Lens Caps
Cleaning Cloth
User Guide
 
Model 40911
Specification 20-60x85ED
Magnification 20x to 60x
Object Lens Diameter 85mm
Field of view 2.2 to 1.1 degrees
Actual Field of View 38m to 20m @ 1000m
Nearest Focus Distance 4.5m
Weight 1,950g / 68.78oz
Focal Length 457.7mm
Multi-coated Optics Yes
Scope Length 385mm