Compact roof prism design with phase coated prisms. Apochromatic (3-element) objectives. 4-Element ocular lens assembly. Long eye relief for use with eyewear. Twist-up eyecups with click stops. Clock-stop diopter adjustment. Fully multi-coated. Phase coated prisms. High transmission silver coating on prisms. Hydrophobic coating on objective and oculars. Waterproof. Fogproof. Shock resistant. Textured synthetic covering provides a non-slip grip in all weather conditions. Matte finish on the metal parts. MPN: tg91042t