Editing: Focus blur animation

In our film opening, shortly after the blinking animation, I edited the footage to imitate someone's vision slowly focusing on an object, as it adds a sense of realism and helps reinforce the narrative.

I started by selecting the focus blur from the blur filters and applying it to the clip I then centred the effect so that the focus was on the actress' face. I preferred this to the other blur filters as it blurred more at the edges than the centre, which is more realistic. I set the time to the point where I want the transition between "out of focus" and "more focused" to begin.

I then adjusted the values for the focus blur to obscure the image more, to resemble a person's vision shortly after waking up. I then toggled keyframe animation for the "amount" and "softness" values (+ icons in the diamonds).

I then moved the timeline forward slightly and toggled the keyframes again, and adjusted the values. I did want to adjust the interpolation of the keyframes, but I could not find a way to do so in final cut pro. The result can be found at 2:13 in the opening. The effect ends up only being about a second long, but I think it adds a lot to the piece and makes the events clearer (makes it more obvious that he has been struck in the head). If I were to do it again, I would most likely make it longer.