These are the most commonly used cameras used in homes and commercial spaces for video surveillance. These are visible units and have plenty of flexibility in usage, such as lenses are interchangeable give you a wider or narrower viewing angle you need to monitor
Dome cameras are a another type of commonly used camera type available in various sizes and are far less obstructive in comparison to box cameras. They can be mounted overhead as well and are easy to install. Security companies offer a wide variety of variants this space and these are also made available with interchangeable lenses.
These are features that allow flexibility in movement of a camera from side to side or swivel from the top and bottom. There cameras are mostly remote controlled and are often used in security installations that require a single camera surveillance.
These are available in multiple sizes and a few manufacturers also have the option of interchangeable lenses. Bullet cameras are very similar to Box Cameras are come with zoom lenses as well.