The Codac R9000 is a camera used to take pictures of landmarks in Fallout: New Vegas. It behaves similarly to a gun and causes nearby non-player characters to react as though you had fired a weapon when used.
This weapon has an abnormally high AP cost, probably to avoid glitches (costs about 1000 AP).
Unfortunately, you cannot see the photos you have made.
Equipping the camera holsters it as if it were a usable weapon. In third person mode, the camera will clip into the Courier's leg slightly.
Its recoil and reload animations are similar that of the N99 10mm pistol.
The Codac R9000 actually fires invisible projectiles that deal no damage and will not anger the person "shot". This can be seen by firing it at water. Companions will still remark on how the player is "wasting ammunition".
Non-player characters, companions included, will react as if the player aims a weapon at them if you point the camera at them.
If you are on the Strip and you take a picture around securitron's they will not become hostile but will note that weapon use is disturbing the peace on the strip.