Focus stacking is a process where the photographer takes a series of photographs (slices), with each one focused at a different depth in the field of view. This series is then analyzed as a group using software that finds the sharpest parts in each slice and blends them together into one image with more depth-of-field that can be achieved in a single image. While stacking is most often used in macro and close-up photography, it does have a place in landscape photography as it can provide depth-of-field results that previously required the use of swings and tilts with a view camera.

In this webinar, I will provide a brief description of stacking using Photoshop, Zerene Stacker, and Helicon focus, along with why I chose Helicon Focus. I will then talk about the problems that can arise during the stacking process and show examples. I will also cover which problems can be fixed and show examples of how that fix works.