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What I did for a living once-upon-a-time was design software for machine vision inspection systems, so I know just a little >< about how photo imaging sensors work. And, yes, digital camera photography is one of my lesser side-hobbies, so I know something of how that technology works, too. You can insist that photographic cameras not be brought up, but that doesn't change the fact they use essentially the same technology and are guided by the same laws of physics (as we currently understand them). "your [sic] adding more pixels to the same area...": Bingo! And more pixels in the same area means the pixels must be smaller. QED. Tom, the pixel size directly relates to its light sensitivity. That's the whole point of this discussion. Provably false. (I've already explained why. I'm not going to repeat myself.) It is? Please show us the ™ or ® mark on Dahua's use of the term "starlight." Please show us where Dahua's technology licensees are acknowledging the use of Dahua's patented startlight technology. You cannot, because "starlight" is a generic term for imaging sensors and surveillance cameras that perform better than others in low-light conditions. This is evidenced, for example, in this Bosch press release: Bosch introduces latest starlight technology - The ultimate 24/7 IP video surveillance cameras just got even better, where "starlight" is mentioned with no attribution. And Dahua is using Sony STARVIS sensors, as demonstrated, for example, by Dahua DH-IPC-HDW5231R-ZE - 2MP WDR IR Eyeball Network Camera and other Dahua Starlight products which also prominently mention using Sony STARVIS technology. I'm not going to argue this with you any longer. I have design background, technology experience, facts and documentation on my side. You have beliefs based on what is apparently an incomplete understanding of the technology, which is now leading you to contradict yourself.

To add to this, that 12x Dahua zoom mentioned is really a varifocal camera. It is used during setup of the camera. The zoom is usually painfully slow. And bullet cameras attract spiders that spin a web right in front of the camera, setting off the motion detection. I am out probably three nights a week clearing webs from 2 bullet cameras. My 2 dome cameras have no problems with spiders. I keep them under a soffit and rarely have to clean water spots off, only after a very windy rain blows through. Eyeball or turret cameras are supposed to not have those problems.