c#, how to access Depth Of Field 34

(Unity 4.3.2)

I’m having issues trying to access the depth of field image effect from scripts, It doesn’t come up in the auto-finish under any variant of the name, also this comes up with an error:

camera.GetComponent<DepthOfField34>(). // no methods found

Do you have unity pro? Check if you refer to the direct camera, else create a var, drag your camera with the script in it and access it trough that variable.