Hikvision recently introduced two smart analog PTZ domes, the DS-2AF7268 and DS-2AF7264. Each has a 960H image sensor to capture images at a horizontal resolution of 700TVL. This image sensor provides the makers say a 36 per cent resolution improvement when compared to 4CIF.
These two PTZ domes provide IR illuminators and offer up-to 150m clear visibility in low or zero lighting it is claimed. Digital WDR and 3D DNR are also supported to improve image sharpness, and provide a more accurate colour reproduction in variable lighting.
Smart tracking
With a smart tracking function, both domes are able to detect a moving object and track it within the camera’s area of coverage. This ensures the target always stays in the middle of the picture during tracking. The makesr suggest that applications include where the presence of people or vehicles requires attention (such as parking lots, streets, residential communities, schools).
Wiper
Hikvision’s dome housing can be ordered with a wiper to automatically clean the lens when exposed to rain, snow, or dust. Both PTZ domes provide a maximum pan speed of 160 degrees per second and a maximum tilt speed of 120 degrees per second. The DS-2AF7268 offers a 36x optical zoom, while the DS-2AF7264 offers a 23x to zoom onto objects of interest. Also, a maximum of 256 camera target pre-set points can be programmed for surveillance, while users can also define eight automatic patrols and up to 32 presets per patrol.
Hikvision also offers another two 5” Smart PTZ domes: the DS-2AF5268 and DS-2AF5264. While these two models do not support IR or a wiper, they do offer a much faster pan/tilt speed (the DS-2AF5268 features a 540 degrees per second pan preset speed and the DS-2AF5264 features a 400 degrees per second tilt preset speed).
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