... binocular colposcope,high resolution,helogen light source, green filter , rocker arm easy to operating. Main configurationMain body of optic lens: ... or 45°optic lens, five level changing time to focusSpring arm bracket, can lock in any angleDouble- ... inch CCDAvailable imaging pixel: 480,000Level definition480lineLens signal-to-noise50Db,automatic or manual white balanceLowest intensity of illumination ...