The new generation of Ultra low light cameras like the 2335 are way better than the older 2332 and 2342 in low ambient light in terms of noise and contrast. There are several examples posted in this forum to testify this. In good daylight conditions all cameras are fairly similar, and basically higher resolution sensors give better images. However in general all HIK cameras labeled as WDR @ 120db (not digital WDR) although not entirely true, still the produce better images in difficult high contrast scenes. That's why the latest 2335 generation combine the best true WDR from the 2342 generation and the low light sensitivity. At night under IR illumination the latest 2335 wins all previous generations like the 2332 and the 2342.