Delta Optical Discovery 8x40 Binoculars

The Discovery series are lightweight binocular models with durable construction. The aluminum, rubberized body hides the lenses built from 8 elements in 12 groups, which are multi-coated with effective anti-reflection layers. Wide eyecups and large eyepiece lenses make any observation a pleasure.

The model has a fixed magnification of 8x and an objective diameter of 40 mm. Used Porro type prism system - in which the objective lens is not coaxial with the eyepiece lens.

A special feature, unlike the other models of this series, is the large field of view, amounting to as much as 143 meters at 1000 meters, making it wonderfully useful wherever you want to quickly track down a target. Thanks to its smaller lens, it is also the lightest and handiest of the Discovery series, making it suitable for taking anywhere, such as to a football game or on an airplane. An ideal choice for young observation enthusiasts.

Technical specifications
Lens diameter: 40 mm
Magnification: 8x
Prism system: Porro
Optical design: 12 elements / 8 groups
Exit pupil: 5 mm
Eye relief: 18.3 mm
Field of view: 8.2 degrees
Linear field of view (1000 m): 143 m
Minimum sharp viewing distance: 5 m
Relative brightness: 25
Twilight efficiency: 17.9
Focusing: central
Diopter adjustment: on the right eyepiece
Eyepiece spacing: 56 -72 mm
Dimensions: 180 x 140 x 65 mm
Weight: 724 g
Manufacturer: Delta Optical, Poland