Delta Chase 8x42 ED Binoculars

 Delta Optical Chase 8x42 ED Binoculars are a modern design based on lenses made of ED glass with very low dispersion. Compact, compact and very durable. These binoculars are versatile and are often used for nature, tourism or as daytime binoculars for hunting purposes. It combines excellent resolution, good contrast and compact dimensions. It works best in daytime conditions, giving a more detailed picture than binoculars with the parameters of 8x42.

ED optics - perfect correction of chromatic aberration
Wide angle optical design with fully flat field of view
Roof prisms made of BaK4 glass, with reflective layers made of silver
Quick, central diopter control

Carefully selected high quality glass grades and redesigned optics mean that Delta Optical Chase binoculars offer significantly better image quality than binoculars in a similar price class. All binoculars in this series are based on lenses made of ED glass with very low dispersion. These lenses guarantee a low level of chromatic aberration while maintaining a moderate size. Binoculars have a large field of view, corrected to a much greater extent than in previously produced models. The entire construction is made in a roof system, with an internal central focusing system. The body is very durable and of course completely waterproof. Chase binoculars will provide an image with very high detail and rich colors, allowing you to see details that are unnoticeable in binoculars of lower quality.

In rifle scopes, binoculars and spotting scopes ED (extra-low dispersion) glass (also sometimes referred to as a high density - HD - glass) is a high quality optical glass that increases light transmission, decreases light dispersion, and so cuts down on chromatic aberration, or "color fringing", which is due to the splitting of the light spectrum.

Technical data:

• Symbol from the supplier: DO-1700
• The name of the binocular series: Chase
• Magnification: 8x
• Lens diameter of the lens: 42 mm
• Lens material: ED
• glass Anti-reflection lens coatings: FMC
• Twilight performance: 18.3
• Relative brightness: 28.1
• Output pupil diameter: 5.3 mm
• Output pupil offset from eyepiece: 14 mm
• Angular field of vision: 7.7 °
• Linear field of vision at 1000 m: 135 m
• Reduction of the field of vision curvature: yes
• Focusing: internal central
• Minimum focus distance: 2 m
• Adjustable eyepiece spacing: 56-76 mm
• Dioptraction correction: -/+5
• Prism type: roof
• Prism material: BaK4 glass
• Prism anti-reflection coatings: yes
• Roof prism reflective layers: silver
• Watertightness: yes
• Nitrogen filling of the housing: yes
• Tripod attachment: adapter ¼"
• Kerb weight: 656 g
• The mass with the packaging: 1420 g
• Dimensions: 138x128x50 mm
• Warranty period: 120 months