depth of field

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Related to Depth-of-field: DOF

depth of field

[′depth əv ′fēld]
(optics)
The range of distances over which a camera gives satisfactory definition, when its lens is in the best focus for a certain specific distance.

depth of field

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 to that part of the frame. In addition, making surroundings softer or foggy can eliminate unwanted background objects that distract from the subject of the picture. See f-stop and focal length.


Quite a Difference
Changing the f-stop from f/29 (top) to f/4.5 (bottom) turns all the unwanted objects in the background into a blur.


Quite a Difference
Changing the f-stop from f/29 (top) to f/4.5 (bottom) turns all the unwanted objects in the background into a blur.
References in periodicals archive ?
The optics imaging technology raises the depth-of-field of up to five times, thereby significantly improving the user experience.
Resolution of lenses is generally not the best at the smallest aperture settings where depth-of-field is maximized.
If in the depth-of-field calculation based on the hyperfocal distance, the diameter of the circles of confusion had been set to 0.
Similar, extended depth-of-field improvements will also benefit machine-vision systems, such as those for reading barcodes, sorting packages, and assembling and inspecting electronic circuits, Dowski predicts.
Their sharp-focus, depth-of-field analyses of modular construction methods evolve into an abstract pattern of grids.
Practice shooting with different apertures to discover how depth-of-field affects your photo.
a leading developer of innovative, timesaving solutions for professional and advanced amateur photographers, today announced FocalPoint 2, an Adobe Photoshop plug-in for simulating depth-of-field and selective focus.
The new CINE-SERVO lens features high 4K optical performance throughout the broad focal length of 17mm to 120mm within its compact and lightweight body, a three-group inner focus system to help minimize focus breathing and provide a stable angle of view, an 11-blade iris to help achieve creative depth-of-field manipulation and natural "bokeh" background, user-friendly design features, support for matte boxes, follow focus and other accessories, and rugged reliability.
The laser line projects a 1 mm or less wide line, regardless of the projector's distance to the target, with its 3' to 12' depth-of-field range.
New Guide is an Elegant Tool for Depth-of-Field Calculations, Optimized for Multiple Digital Sensor and Film Formats
The VHX-600 digital microscope offers a large depth-of-field, 20 times greater than conventional microscopes.
the pioneer in diffusion filters that allow photographers to balance color at capture, today announced the ExpoAperture Depth-of-Field Guide, a small circular pocket guide that enables photographers to quickly determine the maximum and minimum depth of field for a given focal length and aperture size.