Carl Zeiss Victory FL Binoculars (10x42) All-purpose binoculars with 10x magnification and 42mm objective lens Dielectric mirror coatings for superior image brightness and contrast FL Concept optical system delivers extended twilight and low-light performance LotuTec lens coating; premium waterproof, nitrogen-filled housing Twist-up eyecups; measures 5.04 inches long; weighs 27 ounces