https://visualeducation.com/class/live-workshop-focus-stacking-shoot/

Photographing small products often presents problems related to depth of field. One way to overcome these issues is focus stacking.  In this live photography workshop, Karl demonstrates how to photograph a close-up macro shot using the technique of focus stacking, explaining what exactly focus stacking is, when and how to use it and how to get the best results.  He covers concepts such as magnification, tilt-shift, hyper-focal distance and more. In addition to showing you how to do a complete focus stack, from selecting the best aperture to changing your focus points and putting it all together in post, Karl also gives a quick run-through of the lighting setup used for the shot.