What does it mean to monitor a camera with 4mm on its head
4mm is the shooting range of the lens! For example, the 35mm of the camera lens refers to the focal segment, which is the shooting Angle. 4mm is super wide Angle meaning shooting range is very big!
More than the 8mm fish-eye lens of the camera lens! The fisheye Angle is 180 degrees! What exactly is 4mm I don't know about 360 degree. I hope I can help you with your problems! Hope to adopt!
4MM refers to this camera lens is 4MM!
