4 Focus Stacking – Maximizing Depth of Field


Despite the rapid technical advances digital photography has seen in recent years, depth of field in digital images has not increased significantly. To maximize the depth of field, the smallest possible aperture is usually selected. However, this method works only up to a certain point, beyond which the laws of optics cease to improve the image: while depth of field continues to increase beyond a given aperture, the general sharpness of the resulting image begins to diminish. This effect is caused by the physical diffraction of light as it passes through the aperture opening. The f-stop at which diffraction ...

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