Thank You,
I really don't exactly know what the medical equipment is for , but the camera is monitoring human eye ( there is a special close-up lens of the equipment).
I have tried with 5-6 different cameras with specs around 1/3¨CCD , 420 - 480 TVL , 48db , 0.3-1 Lux.
There is a 50W lamp on the equipment , it is quite bright.