Binoculars Lunar 9x60 4.0 Degree. Good for lunar, general astronomical and terrestrial observation. With an exit pupil diameter of 6.6mm, the Lunar performs well in low light situations. It is manageable as a hand held instrument with reasonable strength and a steady grip. Fully multi coated optics. BaK 4 Porro prisms. 4.8 Degree Field of View. 18mm long eye relief for spectacle wearers. Rubber fold down eyecups. Grey rubber armoured body. Made in Japan. Supplied with hard case strap and lanyard. Guarenteed for 10 years against manufacturing defects.