Parameter of the cystoscope: No.DescriptionTechnique Parameter1Work Length 301mm2Diameter of the lens Φ4mm3Diameter of the ocular cover Φ32mm4Diameter of the Light Guide Cable Φ8mm,Φ10mm5Field of view ≥606Angle of view 0°,12°,25°,70°7Zoom (work length 20mm) ≥1.3X8Definition(work length 20mm) 9.36Lp/mm9Depth of Field 2mm-70mm10luminance >5000Lx