Focus stacking is a similar technique HDR
. One thing that you should always keep in mind while taking pictures, is that your camera does not have the same capabilities as your eyes when it comes to seeing depth of field in a scene. The depth of field
(DOF) can be so shallow in photograph that interesting aspects of the photos are without sharpness. A smaller aperture may be used to increase DOF, but moving the aperture farther from a lens’s sweet spot introduces lens diffraction into the image, again resulting in some fuzziness. Also, if stopping down the camera’s aperture, the shutter speed will need to be increased and blurry images may result. Increasing ISO to help with the exposure will introduce digital noise to the image.