Even when you’re photographing distant landscapes with wide-angle lenses, you may notice that the image doesn’t look as sharp as you thought it would. Or perhaps some objects are tack sharp, but as you look farther into the foreground or background, it loses some of that detail. One solution is to use a technique known as focus stacking to ensure your images are as sharp as possible throughout the entire image.
What Is Focus Stacking?
A popular technique for macro and product photography, focus stacking is a technique in which multiple images are captured using different focusing distances, and then all the sharpest parts of each exposure are composited together to make a single image that appears to be in perfect focus from front to back. It is something we have covered specifically for macro photographers already.
“all the sharpest parts of each exposure are composited together to make a single image”
Since it is most commonly used for close-up images where getting enough depth of field is a legitimate challenge, it might be weird to consider using the same technique for landscapes. After all, landscape photography is associated with using lenses and aperture settings that naturally capture deep depth of field. However, this isn’t a perfect solution.
Disadvantages of single exposure:
- Smaller apertures can introduce diffraction (slight softening of entire image)
- Close foreground objects and far backgrounds might not both be in focus
- Limited control over exposure for different parts of scene
- May force use of certain settings or to accept slightly compromised image
Focus stacking can help correct many of these issues.
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