Multiple Exposure
Multiple exposure is a photographic technique in which a photographer captures two or more images of the same scene and combines them during post-processing. The method has applications across various photographic genres, though it is particularly valued in landscape photography for solving technical challenges related to depth of field and image sharpness.
Focus Stacking
In landscape photography, multiple exposure is commonly employed as focus stacking, a method for achieving enhanced sharpness throughout an image. This technique involves capturing a series of photographs with different focal points—typically focusing progressively from the foreground to the background—and then merging them in post-processing software. The resulting composite image maintains sharp detail across the entire scene, overcoming the optical limitation that standard camera settings cannot simultaneously render both near and distant elements with equal clarity.
Process and Applications
The photographer typically uses a tripod to maintain consistent framing across all exposures. Once captured, the individual images are aligned and blended using specialized software, which identifies sharp regions in each exposure and seamlessly combines them. While focus stacking is the primary use of multiple exposure in landscape work, the technique also appears in other genres, including macro photography and architectural photography, where precise depth of field control is essential.