Monitor knowledge! How much Angle camera is best for the 1.2m x 20 m?
Corridor is 20 meters if single export with a camera is ok, if there are multiple export requires added, hemisphere and the bolt can be, the lens Angle, need to look at how far, with 3.6 MM lens to see 3 m is the best effect, wide Angle lens are can cover the range of 1.2 meters, advice or 4 MM 6 MM lens, distance see 6-10 m works best, covering in 50 ° to 60 °
According to my experience, the first lens with 6mm, the second with 3.6 or 4mm lens is better.
It is best to use the 6mm and the above mm for the 1.2m floors, and the 3 m x 5 m room is the best for 3.6. Depending on whether you need the night vision function, select the camera to be the infrared function!
