But in other forms of photography such as Landscapes and Macro you might want to maximise the depth of field. For some images you might need very little, for example in portrait photography where you throw the background to the subject out of focus. How much depth of field you need for an image is a bit of a moving target. Unfortunately, most people don’t have one of these cameras, or the patience to use one. ![]() This can be used to increase depth of field beyond what could be achieved with the aperture alone, allowing the aperture to remain within the optimal working range. This is one of the reasons many Landscape Photographers favour large format technical cameras which allow special movements such as tilt. Ideally you want to keep your aperture in the range where the lens performs at its best. The drawback with this approach is that as the aperture becomes smaller, something called diffraction sets in and the image sharpness suffers. You then carefully select the point of focus for maximum depth of field. The traditional approach (adopted by most) is to use a very small aperture. Trying to achieve a significant depth of field in your images can be quite frustrating. ![]() ![]() There are times when the depth of field you can achieve in a single shot just isn’t enough. A focus stacking video to accompany this tutorial is also available.
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