Depth of Field: The measurement of how much the picture is in focus. A lens can only focus on one plane at a time.
Switch the wheel to ‘A’ which is Aperture Priority Mode. This mode lets you choose the Aperture (the size of the hole in your lens) and tells the camera to choose all the other settings. This semi-auto mode is a great way to control depth of field as it will ensure your images are well exposed. For shallow depth of field and nice blurry backgrounds choose a large Aperture (the smaller the number the larger the aperture). The best way for familiarising yourself with Aperture is taking shots in different apertures and seeing how this effects the focus and softness of the picture therefore the depth of field.
A shallow depth of field specifically looks at one element of the picture and one subject. This subject is commonly a portrait picture. This helps blur out any distractions in the background putting more focus on the subject. This is why the depth of the picture is shallow.
A wide depth of field allows more of the image in to be in focus. This is suitable for landscapes as there is not just one focus point so the whole image is focused and clear. This is done with a much larger F stop e.g. F 22.
Wide angle: the camera having a short focal length and hence a field covering a wide angle.
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