There are many factors that contribute to the overall picture quality with any camera.
The number of pixels, the lense size, Image sensor and compression method are all to be considered.
And of course, we need to see of a night, so IR quality is of utmost importance.
There is no better way to compare cameras than to have them looking at the same subject at the same time.
We have 6 cameras from Micron and Dahua set up on a single board together.
For each video we see all 6 cameras together, then we scroll through from camera 1-6 including a pinch zoom for each.
It is important to note, the "screen capture" process used lowers the quality of video. (720p)
It is to be used to compare these cameras in this video only, not against other full quality clips.
For examples of footage in full quality, check the relevant manufactures on our CCTV page