Through freecam exploits, it is revealed that the prop model used for the camera in Garry's Mod, is the same camera gman uses in the Half-Life series for his recordings when he talks to Freeman.Choose a key in the keypad that activates/deactivates a camera.To open it, hold and press the context key (C by default). You cannot put it on entities (this includes players) It cannot view perimeters outside the map. Click that box, press a key, place the camera, now just press the assigned key and you can see through your camera! In the spawn menu there should be a box saying 'Toggle' or something similar.
Seeing Through the Camera: Press the key that you assigned to the placed camera. Press and hold the menu key (Q by default), then in the tool menu in 'RENDER' select 'Camera'.
This is useful for a simple security system on roleplay servers. The camera tool is a tool that allows the user to spawn cameras and see from their point of view through a designated key. person,this isnt an actual bug but more a reminder that it only works in third person.