Motion blur - object not camera

[tricky]

Its a loooong time since I've touched motionblur. Is it possible to have motion blur on objects but not on the camera? I have a bunch of moving characters that I want to have very exaggerated mblur on, but if I slow the camera shutter down to, for example 1/2 second, I get extreme camera motion blur also. I'd rather apply the camera motion blur in post so just need the object mblur rendered in scene.

<essentially, I want to achieve extreme object motion blur (like a 2 second shutter for example), but no camera motion blur. Is this even possible at rendertime?>