| Dome cameras make the most popular security camera because they can be installed easily in most ceilings or walls. There are usually two types of lenses: fixed lens and varifocal lens. Varifocal lens allows you to adjust your focal distance and zoom manually for closer views or wider views. There are also domes with infrared illumination for nightvision uses. These domes are used for outdoor applications, most are vandal proof for better protection. |