just curious as to what problems if any could occur using 5-6 24vac connected cameras plus a 12vdc camera plugged in to a power surge strip,will there be any interference problems etc?or could l combine more 12vdc cameras?It is connected to a 16 channel dvr nuvico xg.

why not get a dual voltage camera power supply?

Or, you can use a 24V AC power supply and use a 24VAC to 12VDC converter for that one camera. Those sell for $15-$20

But to answer your original question, I'm not sure. I've never powered up that many cameras invidually.

the camera works ok,but l have noticed a degrading of picture quality ie,bright spots around lighting etc on the one camera 12vdc,l cannot adjust it as it is a fixed lens,l was wandering if everything went through the 24vac power supply that l already have will it fix the problem or should l just use that adapter you referred to(do you have a link to it)

Here is that 24 to 12 converter pic:

Whats the brands of the 24vac cams and the 12 vdc cam? My thoughts are the 12vdc is just cheap. Are there any dip switches on the 12vdc?

what he said (again LOL) plus, it wont generally matter if its 12VDC or 24VAC on the same strip, but i would try and keep it seperate as you just never know. Just use 2 seperate strips, also, its "only" a surge strip so its not that much of any protection, not like a voltage regulator or Line Conditioner. 5-6 cameras are nothing really, what cameras are they and how much current do they draw?

How many feet of cable are you using from the camera to power supply? What kind of power supply are you using? If its a wall wort (plug in type), what is the output?

also, have you tried them all on a single CCTV monitor (or TV) one at a time to make sure your issue isnt the DVR? Also take them all off the DVR and plug on in at a time, mess around with that and let us know.

no dip switches on camera,l will try taking each camera off and testing it,l have different brands of camera dome,box,b/w etc,l will test it and let you guys no!!
The longest run is 50ft from supply to camera.
Nuvico nvcc-wv 42 ir 16n day/nite is the one giving me glare issues,l dont see where you can adjust without taking it apart!

ok tested cameras and it is the dvr that is not giving me a good picture,l hooked it up directly to a tv and perfect picture,l changed input from cam1 to cam9 on dvr and l have a better picture but not the same as the tv,would it be possible to check main out into tv instead of monitor l am using bnc-rca converter.
if it is the dvr what is wrong with it?

Probably just a bad port or loose connection on that channel.