Anyone who has photographed with an analog camera is familiar with this technique: without moving the film on, you trigger it a second time and thus overlay two shots. You don't have to do without this technology with a digital camera – digital SLR cameras as well as mirrorless system cameras process multiple exposures inside the camera and, depending on the camera model, even output a raw file as a result. The possible uses range from montage to creative motif design while you are still taking pictures.
The Orton effect
With a double exposure you can create moods by giving photos a soft image look. This so-called orton effect arises when you place a sharp image over an unsharp image. The sharp edges of the motif are given a soft contour, which creates a dreamy atmosphere. Trees, flowers, mushrooms and grasses are particularly suitable as motifs.
Since the two photos must lie exactly one above the other, the camera must not be moved between the two photos. That's why I recommend working with a tripod. In this way you avoid changing the image detail, which means that the contours of the two images are not congruent. Take pictures outdoors in the absence of wind. Because even if the photographed grasses or flowers move only slightly, the motifs of the two pictures do not lie on top of each other. If you take pictures directly above the floor, a beanbag helps to fix the camera.
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