The Nikon Monarch HG 30mm diameter binoculars are ideal for bird or nature watching enthusiasts, as well as those who enjoy different kinds of outdoor activities and want to travel light. With its magnesium alloy body these binoculars weigh just 450 grams. They provide sharp and clear views all the way to the periphery and maintains a wide field of view with natural colour fidelity. The wide apparent field of view of 60.3 degrees provides spectacular viewing, while the Field Flattener lens system assures a sharp and clear view. The use of extra low dispersion (ED) glass corrects chromatic aberration that can cause colour fringing to achieve a contrast rich and high resolution image. A high-quality multilayer coating is applied to all lenses and prisms. Dielectric high-reflective multilayer prism coating and phase correction coating are applied to the roof prisms, which combine to achieve a bright view with light transmittance of up to 92 per cent or higher, plus natural colour fidelity. Long eye relief design ensures a clear field of view, even for spectacle wearers. Lead and arsenic free glass is used for all lenses and prisms. Turn and slide rubber eyecups with multi click facilitate easy positioning of eyes at the correct eyepoint. Optional tripod adapter (TRA-3 / Adaptor H). Come complete with a neck strap that reduces strain on the users neck, a semi hard type case to protect the binoculars in transit and caps.