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Has anyone installed a lens filter on the outside (or inside) of a Dahua turret cam? I'll like to attached a polarizing filter to cut some strong glare at one of my locations. I have 77mm ring filters from my DSLR I could use. I suppose gluing on a 77mm adapter to the turret is an option that...

I was comparing specs of a couple of Dahua cameras and noticed many of their 2MP and 4MP cameras have the same sensor/size, same F-stop, but also have the same minimum illumination numbers. I don't understand how this is possible. If the optics are the same, the CMOS's type/physical size is the...

Hi guys, I have a number of Dahua cameras and have been quietly following this forum for awhile now. Great information here. I'm interested in putting in the latest firmware on for my SD59230S-HN PTZ speed dome. My current versions: Master Version 2.210.0004.0.R.A.3013.3N.NR, build ...