I'm trying to do visualization of my aircraft, but what I want to achieve is to have propeller blurred like it was rotating. I can add motion to the project, so it spins, all nice and well. But when I try to render a shot, the environment background (California desert) gets blurred as well. I tried switching on and off field of depth and everything, but every time it is the same outcome. Can someone give me a hint what am I doing wrong?
I attached two images, one with propeller blurred (and environment as well) and one with static propeller and proper environment.