... )520TVL,COLOR1/3"sonyLow lux CCD SAV-CD169 Waterproof PTZ Camera SONY490 core 1/4Super HAD CCD 540TVL 18X optical zoom ... second preset stick time.• Color 18X, 22X, 27 X optics camera module.• Proportional zooming, reduce pan/tile speed according to zooming ... and balanced image,get the best picture.• Private zone masking, can freely set private zone masking, direct proportion enlarge or shrink to ...