Hi, I am a newbie to dslr, have a D5100 with kit lens. I have been trying very hard to learn about focus the whole week. I have not been able to focus on a particular object both during capturing pics and video.When I turn my cam to manual focus, and use the ring to focus, either everything is blurred or sharp. I do not know how to focus on a particular object like the video in the link. Can some one help me to know what the guy in the video has done? I tried searching a lot, but couldnt understand on this.