Hikvision has focused on improving low-light performance for PTZs, an area that has traditionally been a problem, even more so than fixed cameras, due to the challenges of higher F stops and long-range varifocal lenses of PTZs.
Two of Hikvision's most notable efforts are (1) their Darkfighter PTZ line and (2) more recently, their DarkfighterX, the "next level of surveillance", that unlike any major manufacturer, uses 2 sensors, as Hikvision explains the "IR sensor delivers image brightness, the other sensor for visible light guarantees vivid color."
We bought and tested the Darkfigher X DS-2DF8225IH-AELW against Hikvision's Darkfighter line (the DS-2DF8236IX-AELW) to see how this technology works and which one is better in which ways.
Inside, we share our full test results, including:
- Wide angle vs zoom details captured
- Low light color performance (in sub 1 lux 'no light' and in 2 - 7 lux ambient / 'urban' lighting')
- Monochrome vs. color performance differences
- Focus issues
- Size compared to other PTZs
- Relative bandwidth consumption
- Comparative pricing