Apologies in advance for the silly question. I am not new to Vegas but i have only now built up the confidence to start playing with some effects on my videos. What i am wanting to do is use the defocus but for only 1 sec of a 10 sec clip. It's for a car racing video and i just want it to defocus for that 1 sec. But every time i insert the effect, it is visible for the whole clip.
Can somebody please tell how i go about this?
It's using Sony Vegas 10