field of sharpness

См. также в других словарях:

• Field Flattener Lens — Field flattener lenses are used in modern binocular designs (e.g. Canon 10 x 42 L IS WP, 18 x 50 IS All Weather and Swarovski EL 8.5 x 42, EL 10 x 42) and in astronomic telescopes.Field flattener lenses in binoculars improve edge sharpness and… …   Wikipedia

• Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …   Wikipedia

• depth of field — the range of distances of the object in front of a camera lens or other image forming device measured along the axis of the device throughout which the image has acceptable sharpness * * * Optics, Photog. the range of distances along the axis of… …   Useful english dictionary

• depth of field — Date: 1911 the range of distances of the object in front of an image forming device (as a camera lens) measured along the axis of the device throughout which the image has acceptable sharpness …   New Collegiate Dictionary

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• Circle of confusion — For the closely related topic in microscopy, see Point spread function. In optics, a circle of confusion is an optical spot caused by a cone of light rays from a lens not coming to a perfect focus when imaging a point source. It is also known as… …   Wikipedia

• photography, history of — Introduction       method of recording the image of an object through the action of light, or related radiation, on a light sensitive material. The word, derived from the Greek photos (“light”) and graphein (“to draw”), was first used in the… …   Universalium

• Nikon D3 — Type Digital single lens reflex camera Sensor 36 mm × 23.9 mm CMOS, Nikon FX format Maximum resolution 12.1 effective megapi …   Wikipedia

• Miniature faking — Digitally blurred miniature fake of Jodhpur Original p …   Wikipedia

• Hyperfocal distance — In optics and photography, hyperfocal distance is a distance beyond which all objects can be brought into an acceptable focus. There are two commonly used definitions of hyperfocal distance , leading to values that differ only slightly:The first… …   Wikipedia

• F-number — In optics, the f number (sometimes called focal ratio, f ratio, or relative aperture [Smith, Warren Modern Lens Design 2005 McGraw Hill] ) of an optical system expresses the diameter of the entrance pupil in terms of the focal length of the lens; …   Wikipedia