Zoom digital camera 1.540TVL,auto iris,with IR-cut 2.super high focus speed 3.22x,27x optical zoom Zoom digital camera27x high ... speed high resolution digital color zoom camera .Optical zoom:27x,with IR sensor,f=3.9~85.8mm,0 ... , baud rate( 2400/4800/9600 selectable),manual/digital auto focus,auto white balance,aotu iris,support line control or RS ...