10-30X50 Portable Zoom Monocular Waterproof BAK4 HD Handheld Optic Scope Pocket Telescope for Smartphone Outdoor TourismFeature:1. The lens is made of all-optical glass, FMC multilayer coating, sharp imaging, bright and transparent, no chromatic aberration.2. 50mm objective lens, large field of view, greater light flux, higher brightness, and clearer imaging.3. BAK4 is a glass with a higher refractive index than BK7, which can effectively increase the transmittance.4. 22mm wide-angle large eyepiece, comfortable viewing, no dizziness or swelling.Specification:Model: MY-DT007Material: BAK4, ABS plasticSize: 118x60mm/4.65x2.36inProduct magnification: 10 times - 30 timesFocusing: Mid-focusingObjective lens diameter: 50mmAngular field of view: 5.6°at 10X - 2.7°at 30XExit pupil distance: 15.1mmExit pupil diameter: 5.6mmNear focus: 5m/16.4ftField of view: 130m/1000mEye cup type: RotatingOptical system: Roof opticsPrism: BAK4Waterproof system: Nitrogen-filled, waterproof and anti-fogCoating: FMC full-broadband multi-layer green filmType: A 10-30X50 Black, B 10-30X50 Black + Simple Phone Holder, C 10-30X50 Black + Simple Phone Holder + Small TripodNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-3cm measuring deviation due to manual measurement.01:1 X Monoculars1 X Pocket1 X Lanyard1 X Instruction1 X Lens Cleaning Cloth02:1 X Monoculars1 X Pocket1 X Lanyard1 X Instruction1 X Lens Cleaning Cloth1 X Mobile Phone Holder03:1 X Monoculars1 X Pocket1 X Lanyard1 X Instruction1 X Lens Cleaning Cloth1 X Mobile Phone Holder1 X Tripod