The Delta Optical DO Starlight 1570 is an inexpensive binocular for the beginner night sky enthusiast looking for an optic with reasonable price and parameters, allowing sky observation.The Delta Optical DO Starlight 15 70 is a porro prismatic telescope with powerful 70 mm diameter lenses, Bak4 prisms and multi-coated reflecting surfaces, which ensure a clear, bright image with correct astigmatism correction and no chromatic aberration or coma.The surface of the binoculars is covered with a soft rubberized material that provides high grip and good shock absorption in case of a fall.As for the mechanics of the binoculars, attention should be paid to the large eyecups, good isolation of ambient light, comfortable central focusing , the inside of the tubes are well darkened. The Delta Optical StarLight 15 70 is designed for those who want to start their adventure with astronomy and sky observation the right way.SPECIFICATIONSPage informationFilling gas none:Angular field of view [Toy] 4.7Diopter adjustment [Toy] 3Linear field of view at 1000 m [m] 82Min. Focal length [m] 22.Magnification [] 15Ocular distance [mm] 57-72Optical efficiency 32.4Prism arrangement porroPupil distance [mm] 4.7Additional informationStand mounting option YesApplication (intended use)wildlife observation and hunting,outdoorDimensionsWeight [g] 1390Objective diameter [mm] 70Width [mm] 220Total height [mm] 110IncludedTelescopesIncluding elementsHelmet strap,holder,glass caps,binoculars