Bresser C-Series 10x42 Binocular Prism BaK-4 Roof. These Binoculars designed by Bresser contain fully multi-coated BaK-4 prisms to ensure the best light transmission color fidelity and resolution - a clear choice for both low light conditions and long-distance observation. The Bresser C-Series 10x42mm Fully Multi-Coated Binocular are built to handle harsh conditions with a nitrogen-purged housing that ensures great performance in any environment. The twist-up eyecups provide a comfortable viewing experience while the diopter adjustment ensures each eye is properly focused. This model of the Bresser C-Series 10x42 Binocular is built to handle the serious outdoor conditions juggling a busy schedule and the demands of a hectic lifestyle. Specifications for Bresser C-Series 10x42mm Roof Prism Binocular: Manufacturer: Bresser Color: Black Magnification: 10 x Objective Lens Diameter: 42 mm Prism System: Roof Prism Material: BAK4 Optical Coating: Fully Multi-Coated Close Focus: 10 ft Water Resistance Level: Yes Weight: 1.8 lb Magnification Type: Fixed Package Contents: Bresser C-Series 10x42 Binocular Bresser 90-01042: C-Series 10x42 Binocular Prism BaK-4 Roof