2.8-12mm Motorized Varifocal Lens 4K IP Camera Video Demo
This video shows the angle of view range provided by the 2.8-12mm motorized varifocal lens on the Viewtron IP-A8DZ security camera.
The Viewtron IP-A8DZ is a 4K dome IP camera that can be installed indoors and outdoors. The camera’s housing is IP67 weatherproof rated.
Viewtron IP Camera NVR with PoE
The security camera is hard wired to the 16 channel Viewtron NVR located inside my house. CAT6 cable is used to hard wired the camera’s RJ-45 network port to one of the PoE (power over Ethernet ports on the back of the NVR.
PTZ Camera Controls on NVR
The pan tilt zoom controls on the Viewtron NVR are used to zoom the motorized lens in and out. The camera auto-focuses on its own as you zoom the lens.
Outdoor Wall-mount Installation
To perform the motorized varifocal lens demonstration, I installed the dome camera to the side of my garage. This IP camera can be wall mounted or ceiling mounted. For this installation, I used the optional VT-J302 camera junction box. I always recommend using one of these for outdoor installations.
80 Foot Distance to Focus Area
The edge of the driveway at my house is 80 feet away from where the camera is installed. I parked my truck at the edge of the driveway and placed a piece of artwork leaning up against it. The artwork has some text on it which will be a good focal point to text the varifocal lens.
2.8mm Lens Setting
This is what the angle of view and distance to the truck looks like with the lens set to the widest angle, 2.8mm. Please click on the image to see the full 4K video resolution recorded by the Viewtrom NVR.
12mm Lens Setting
This is what the angle of view and distance to the truck looks like with the lens set to the most narrow / zoomed in angle, 12mm. Please click on the image to see the full 4K video resolution recorded by the Viewtrom NVR.
Optical Zoom on NVR at 2.8mm Lens Setting
The Viewtron NVR has an optical zoom function that lets you zero in on specific areas of the video. I used the optocal zoom function to see if I could read the word on the artwork at the 2.8mm lens setting. You can see that the words are not legible. You can click on this above image to see the full 4K video resolution recorded by the NVR.
Optical Zoom on NVR at 12mm Lens Setting
The above snapshot was captured with the lens set at the 12mm setting. The optical zoom on the NVR was used to zero in on the artwork and you can see that the words are readable. You can click on this above image to see the full 4K video resolution recorded by the NVR.
2.8-12mm Varifocal Lens Summary
The 2.8 to 12mm motorized varifocal lens works great to focus on areas of interest up to 80 feet from where the camera is installed. The motorized lens can easily be adjusted from the Viewtron NVR that the camera is connected to and also from the mobile app for iPhone and Android. The optical zoom function on the Viewtron NVR allows you to digitally zoom into specific areas on the video surveillance image.
Have Questions / Need Help?
If you have any questions about this video / article, you can reach me via email at mike@viewtron.com. Me and the team at CCTV Camera Pros can design a system for your home or business. We provide free phone consultations, systems designs, and quotes. You can learn about all of our Viewtron security camera systems here.
