Ok bought a off brand chineses camera from a friend of mine worked great but of lately Ive been getting some black dots on it during the night while leds are on!
Its a 1/3" SONY Super HAD II CCD with OSD varifocal ir cut
kinda new to osd so i played a bit with it trying to fix it even resting but nothing
So what kind I do? Other than replacing it because its clean during the day
Camera could be found here
http://www.aliexpress.com/item/1-3-Sony-Effio-e-CCD-700TVL-camera-with-OSD-menu-78pcs-IR-leds-2-8/1857477777.html