What does the last number for cameras indicate?

The last number for cameras typically indicates the resolution of the camera. In the context of camera specifications, particularly in digital surveillance or imaging systems, this number often signifies the quality of the image that the camera can produce. For instance, if a camera has a designation like 1080, the last number indicates that it is capable of producing a resolution of 1080 pixels in height, which corresponds to a full HD (high definition) resolution.

Higher resolution numbers indicate a greater level of detail that the camera can capture, making them crucial for applications where image clarity is essential. In contrast, the other options refer to different camera specifications, such as the number of channels (which relates to how many streams of video can be managed), the type of enclosure (which refers to physical protection against environmental factors), and the strength of materials (which involves the durability and construction of the camera itself). None of these directly corresponds to the last number designation associated with camera resolutions.