Colour of camera?
Most camera cases are white, so that they are easily seen and act as a deterrent, although a dark grey option is available.
The dome is used most often for internal and low-level mountings as it is harder for this type to be damaged, rotated or covered.
The advantage of bullet cameras is they are easily pointed in the desired location and the images are not as easily affected by sunlight or water.
If fitted at low-level they are more susceptible to vandalism.
The mini-bullet offers a more compact size and so is more appropriate for internal locations where a dome is not appropriate.
The turrets are almost a cross between a dome and a bullet and so are preferred by some clients.
These camera may be used internally or for some external applications.
The design ensures that the separate IR source does not produce a ghost image.
Small cameras are available for surveillance where ideally the camera is not visible.
A fisheye lens gives a complete view of a room from the ceiling, but it requires software or a suitable NVR to convert the image into a number of different standard views/images.
It is the best way of filming a room using a single camera although this normally uses four channels on the NVR.
This external rated camera is optimised with a zoom lens and software for recording car registration plates for vehicles entering (or leaving) an area.
It is possible in most cases to use the image from a standard camera to obtain the registration details, although this will not give the best results in all conditions