The XM Series feature BAK-4 FMC prisms that provide optimum light transmission and sharp, high contrast images. These prisms are additionally phase-coated to further reduce any loss of light. The Carson XM 10 x 50 is O-ring sealed and nitrogen filled to guarantee they are fog proof and waterproof.
Contact: Carson Optical, Dept. PB, 175A East 2nd St. Huntington Station, NY 11746; (800) 967-8427; www.carson-optical.com.