This 2.8mm len IP camera is the widest angle we can offer for home security camera installation in Auckland. It cost 30% more than the 4mm and 6mm lens. The angle is 96′ but the actual effective coverage is probably 90 degrees. It is still half of human eyes’ 180′ range, and it’s fixed. It will not cover any thing beyond this angle. To install it on one side way, it covers only have of the rang, you need two of them to cover the whole side.