Specifications: Product model: ST02 Multiplication: 5X Number of lenses: 5 pieces/3 sets Field of view range: 184m/1000m Product color: black Prism: BAK4 PRRO Focusing system: ★ Cent Eyepiece size: 14mm Focusing lens: Obj Objective lens size: 20mm Exit pupil diameter: 4mm Coating: FMC multi-layer coating Pupil exit distance: 16mm Prism coating: YES Field of view: 10.5 °