Even in extreme conditions, the SX-4 Pro Guide HD Gen 2 is an asset worth your trust. At its core is the Elite Optical System, equipped with enhanced lens coatings that significantly reduce glare, making it ideal for the bright light of early mornings. It also features an incredibly rugged magnesium body that is both waterproof and fog-proof, an oversized eyepiece for all-day comfort, and an Interchangeable Form-Fit eyecup for a personalized viewing experience. But to get the most out of it, you'll need a tripod; securely mount this optic using its built-in threads or integrated Arca-Swiss adapter. FeaturesOversized EyepieceInterchangeable Eyecups (Flat and Winged)Scratch-Resistant LensesGuard-ion Lens CoatingUltra-Smooth FocusIntegrated Sun ShadeIntegrated Arca-Swiss AdapterCase and Strap Included