The phrase identifies solutions that merge multiple images of the same scene, each with a different focal point, to produce a final image with increased depth of field. This technique is particularly useful in macro photography or situations where achieving sufficient depth of field through aperture adjustment alone is not possible. The availability of no-cost options makes the technology accessible to a wider range of users.
The practice of combining images for enhanced focus addresses limitations in traditional photography. The advantage lies in achieving clarity across the entire subject, which is essential for scientific documentation, product photography, and artistic expression. Historically, this process was complex and time-consuming, but readily available software has streamlined the workflow, democratizing access to sophisticated imaging techniques.
