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depth of field

   Also found in: Acronyms, Wikipedia 0.06 sec.

The area in an image from front to back that is in focus. The smaller the aperture (the larger the f-stop number), the more objects are in focus both near and distant. The wider the aperture (the smaller the f-stop number), elements in front of and behind the object in focus appear soft or blurry.

Set a Mood
In both moving and still pictures, depth of field (DOF) is widely used to call attention or create feelings. By focusing on one element in the image and leaving the rest blurry, the audience is drawn into that part of the frame. In addition, making surroundings softer or foggy creates an ambience and change of mood. See f-stop.
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Optical microscopes normally have a shallow depth of field, so only a thin slice of tissue is in focus at any time.
Making a 3-D microscope: technique brings entire sample into focus by Barry, P. / Science News
This microscope provides exceptionally bright illumination and outstanding depth of field for otolaryngology and was designed with particular emphasis on multidisciplinary surgery centers.
Surgical microscope by Ear, Nose and Throat Journal
According to the company's research, customers are looking for lighter magnets that have a greater depth of field, reaching farther into the pile to move more with each lift.
Winkle fine tunes lifting magnets by Recycling Today
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