Focusing The Camera

Below are a few examples of when I experimented with focusing. The aim of this was to be able to focus on one subject and then switch the focus to another subject smoothly.

Both of these videos are quite similar, although in the first my subject went slightly out of focus again at the end, which I hadn't intended to happen. I did a quick re-shoot of the same subjects and think that, although it took me considerably longer to focus on the second subject, it looks a lot smoother. The video was correctly exposed and because I shot indoors, I had to use a slightly higher ISO than I would in natural day light and a lower aperture. 


Process

I think that