Depth of field is the near to far sharpness in your pictures. A picture with shallow depth of field has only the main subject in focus, and everything in front of it and behind it is blurred. The opposite is a picture with deep depth of field, where everything is sharp from right up close […]
A hardware and software technique for getting more depth of field in close-up and macro shots. You take a series of images at slightly different focus settings, then use focus stacking software to blend together the sharpest areas of each into a single image.