Laser IR PTZ Experiences?

Dear IPVM Team and members, does anyone have experience with the use of Laser IR PTZ SpeedDome?

I noticed that Hik and Dahua has recently launch this type of camera and I really want to know real coverage and also how does the IR laser beam react on near field (3m) if the images get burned or not.

I also need to know if the IR laser beam has lens in order to gets wide open or close according to Zoom motorization of the camera sensor.

I would appreciate for your comments!!

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