I'm new to this so bare with me. I just bought a Swann 4 channel 2550c dvr and it came with ADS-180 cameras. I wanted to upgrade and got the Swann Pro-642 camera which has 700 TVL verse 400 with the ADS 180. Also the IR at night is much better. Problem I'm having is durning the day I see horizontal lines and the picture isnt crystal clear. Does anyone have experience with these cameras and what are the optimal settings to get the best picture? Thanks