I lined up some of my IP cameras and took snapshots from the same position and distance...
All pictures are taken with the original lens, neutral Brightness and Contrast settings,
50Hz , no zoom applied. Click on the pictures to see them in full size.
The older one, the Foscam FI8918W, good picture but the classic colour aberration due to IR filter:
The Dericam M801W, one of the first camera to include IR-cut.
The Tenvis IPRobot3, HD and IR-cut:
The CyberNova WIP-604MW, HD and IR-cut as well, more colour, but more compression too...