Model: UCF8X25C a).Compact style b).Multi-coated lenses c).Center-wheel focus d).Optimal image sharpness Specification: Magnification: 8x Objective Lens Diameter: 25mm Angle of View: 6.8 degree Exit Pupil Diameter: 3.1 mm Exit Pupil Distance: 12.6mm Weight: 230g Size: 115x115x45mm