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To use this option, cameras and their video feeds must match the following conditions:

1. Video cameras should be located back-to-back.

2. No more than 3 cameras' feeds can be merged horizontally.
3. The cameras must have:
   1. pixel resolution of no less than 640 * 480;
   2. identical aspect ratio for the high and low bitrate streams;
   3. identical parameters of lenses.
4. You have to synchronize time on all cameras (for example, via NTP protocol).
5. Camera jitter must not result in more than 1% image shift in both directions.
6. The recommended image overlap across adjacent cameras is 20–25 percent of image width.
7. Camera images must be aligned vertically.

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