Focus in photography canon eos 350d battery is very important, a great photograph is to correct the basic requirements of focus, make sure to focus clearly, so, how to focus to produce clear picture?

1. The film portrait: certain or try to focus on the human eye.

2. Shooting-the scenery: at the infinite distance focus, or the camera canon eos 450d battery to focus on the picture of a third of the position before the room so that can get most of the depth of field, the most clear pictures.

3. Shooting close-up of close (such as macro photography), to the requirements of the focus on higher, because usually the main body of this shooting, lens is close aperture is bigger also, if focus not real, the photograph also very vague. So in this case to very carefully to focus, or select manual focus in order to ensure that the definition.

4. The low light environment: automatic focus is to use contrast to fulfill. In the insufficient light, small contrast, sometimes autofocus will "insomnia", you can at the main body of line near objects or have a clear dividing line's position focus. If photographed people can let objects up a finger, put in by the eyes for your focus. canon eos rebel t1i battery