With a camera lens of 2.8mm you are guaranteed a very wide picture which gives an incredibly good overview of the picture. The most used cameras make use of 2.6mm, 2.8mm and 3.6mm lenses. If you are unsure if the 2.8mm lens is right for you, then you can easily measure it by yourself. Stand where you want the camera to be installed and extend your arms at a horizontal angle of approx. 100 degrees in and 74 degrees vertically. We recommend the 2.8mm lens if you want to have a wide view and want a good overview of shorter distances. E.g. very useful for carport, parking lots, gardens, lawns etc.
If you want to be sure that the lens fits your needs, we recommend that you choose a variable lens camera as this type of lens allows you to adjust the camera exactly as you wish.