Swarovski ATX/STX 95mm Modular Objective Lens DEMOOptical Performance:95mm objective diameterFluoride-containing apochromatic HD glass elementsSWARODUR and SWAROTOP high-contrast optical coatingsSWAROCLEAN non-stick coating on exposed lens surfacesField flattener lens eliminates geometric optical distortion and preserves edge sharpnessConstruction:Lightweight and rugged magnesium housingSupple yet durable rubber armored exteriorNitrogen-purged interior for waterproof/fogproof performance-13 to 131AdegF (-25 to 55AdegC) operating temperatureSubmersible to 13 ft (4 m)Functionality:One-handed operation via side-by-side zoom and focus dialsErgonomic and oversized focus wheelTravel-friendly modular objective/eyepiece systemIntegrated tripod collar for convenient mountingDigiscoping compatible with point-and-shoot, mirrorless, and DSLR camerasSwarovski Demo ProductsSwarovski demo products have been slightly used for display or demonstrations by Swarovski during outdoor industry events. They may exhibit minor cosmetic imperfections that will vary from demo product to product. Swarovski demo products and their included accessories are guaranteed by Swarovski to operate to the standards for a new product. In rare cases, one or more accessories may be missing. All Swarovski demo products are covered by the Swarovski Limited Lifetime Warranty (View Warranty)