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Topic: Angle of view


  
  Notes on The Gaze
Kress and van Leeuwen argue that the horizontal angle adopted represents ‘whether or not the image-producer (and hence, willy-nilly, the viewer) is "involved" with the represented participants or not’ (Kress and van Leeuwen 1996, 143), with the frontal angle representing involvement and an oblique angle representing detachment.
Messaris notes that a low angle combined with a frontal view and a direct gaze at the viewer may be interpreted as overbearing, intimidating or menacing, and that when the intention is to use low angles to suggest noble or heroic qualities, side views are more common (Messaris 1997, 38).
In travel advertisements where there are rear views of people this tends to be either in longshots of landscapes or in midshots or close-ups of semi-naked bodies in seascapes (Messaris 1997, 24-7).
www.aber.ac.uk /media/Documents/gaze/gaze04.html   (944 words)

  
  Lens Angle of View Information   (Site not responding. Last check: )
Angle of coverage is the angle formed by the entire image circle of the lens when focused at infinity.
Angle of coverage is affected by the f stop of a lens and should be referenced to a given number.
Angle of view must be given for a specified film format and is dependent on lens focal length.
www.lighttec.com /angle.html   (347 words)

  
  Kids.Net.Au - Encyclopedia > Angle of view
In photography, angle of view is the size of the image on the film.
Angle of view is affected by choice of lens; wide-angle lenses get considerably wider angle of view than telephoto lenses; with e.g.
One result of using a wide angle lens in close proximity to the subject is an apparent perspective distortion: parallel lines may appear to converge; with a fisheye lens[?], straight edges will appear to bend.
www.kids.net.au /encyclopedia-wiki/an/Angle_of_view   (249 words)

  
 * Angle of view - (Photography): Definition
ANGLE OF VIEW - Also known as the "Field of view," "FOV" and the "Angle of the field of view", it is the extent of the view taken in by a lens.
Angle of view is determined by the focal length of the lens.
Angle of View - The angle of view is calculated by the focal length of the lens and the size of the image sensor.
en.mimi.hu /photography/angle_of_view.html   (938 words)

  
 Endoscope attachment for changing angle of view - Patent 5700236
Both the structure for changing the angle of view of an endoscope and the optical member for changing the angle of illumination of an endoscope may be positioned within the distal portion to align with the respective imaging or illumination elements of the endoscope.
Both the structure for changing the angle of view of an endoscope and the optical member for changing the angle of illumination of an endoscope are positioned within the sheath distal portion to align with the respective imaging or illumination elements of the endoscope.
angle relative to the axis of the endoscope.
www.freepatentsonline.com /5700236.html   (7133 words)

  
 CALUMET
The angle of view of a camera lens is the amount of the subject area that is seen and reproduced on film.
Angle of coverage, on the other hand, can be defined as the angle formed by the entire image circle projected onto the film by the lens.
Angle of coverage is an extremely important specification to examine when choosing a large format lens.
www.calumetphoto.com /ctl?PAGE=Controller&ac.ui.pn=common.ShowParent&spName=ANGLEOFVIEW   (229 words)

  
 Lens Angle of View & Field of View Lens Calculator // sweeting.org
Use this lens calculator to view the lens angle of view and the field of view of a lens.
The angle of view of a lens depends on the lens focal length, and on the size of the sensor (or film) upon which the image is being projected (see the formula below for more).
The angle of view of the lens for the given combination is drawn on the adjacent graph, and the angle of view, field of view and 35mm equivalent lens are shown below it.
www.sweeting.org /mark/lenses   (722 words)

  
 Apparatus for improving the angle of view in a liquid crystal display (US5150235)
In a polychromatic liquid crystal display, apparatus and method for improving the off-axis viewing characteristics are described.
The angle of view can be expanded by appropriate selection of the thickness and the birefringence parameter of the liquid crystal material as a function of the color of the liquid crystal display pixel.
In order to improve further the angle of view, retardation films are used to reduce the angular dependence of the radiation.
www.delphion.com /details?pn=US05150235__   (311 words)

  
 Field of View - PanoTools
The angle of view of a photograph or camera is a measure of the proportion of a scene included in the image.
A typical fixed lens camera might have an angle of view of 50°, a fisheye lens can have an angle of view greater than 180° and a full equirectangular or cylindrical panorama would have an angle of view of 360°.
Angle of view is also known as angle of coverage.
www.panotools.info /mediawiki/index.php?title=Field_of_view   (642 words)

  
 the View - field, angle & point
Wide: Accomplished with a wide angle lens in photography, anything between 28 and 50mm in 35mm photography; Objects on the z-axis in the wide angle image appear to be farther apart than they are in reality and individual objects appear to wider than normal, but they are not yet distorted to a point of recognition.
This is the relative position of the viewer to the object being viewed.
It is important to remember that angles of view are all relative to the object(s) found within the frame.
www.coms.hkbu.edu.hk /williams/concepts/theView.html   (820 words)

  
 DSLR Magnification
Angle of View is simply that viewing angle which fills the frame (of any format).
The focal length remains the exact same but the angle of view is reduced to the same as that of a lens of 1.5 or 1.6 times greater focal length on a 35mm format camera.
The decreased angle of view of the lens means that the design limits of existing 35mm format lenses do not allow the easy design of a short focal length lens with sufficient retrofocus to allow room for the SLR mirror.
www.luminous-landscape.com /tutorials/understanding-series/dslr-mag.shtml   (1819 words)

  
 MISR: Mission: Instrument: Viewing Angles
In general, large viewing angles provide enhanced sensitivity to atmospheric aerosol effects and to cloud reflectance effects, whereas more modest angles are required for land surface viewing.
The angle of these cameras also provides a view sufficiently separated from nadir to provide independent information, but not so large that angular reflectance variations due to geometric effects close to the vertical are missed.
A view angle as high as possible is desired to provide maximal sensitivity to off-nadir effects, and the Df and Da cameras are placed to satisfy this objective within practical limitations.
www-misr.jpl.nasa.gov /mission/iangles.html   (742 words)

  
 Welcome to Digital Photo Studio   (Site not responding. Last check: )
Focal length indicates a lens' angle of view that in traditional 35mm photography is "used to" the common focal lengths of 28mm, 50mm, and 200mm.
A 24 X 16 mm CCD with its narrower angle of view will isolate small portions of the scene without your having to move the camera closer to the subject.
The focal length of a lens is the distance between the front of the image sensor and the optical center of the lens, when the lens is focused on infinity.
www.ohiou.edu /~unirel/taeil/digital/digitize_1.html   (556 words)

  
 Angle of view - Definition, explanation
In photography, angle of view (also called Angle of Coverage or Field of View) is the amount of a given scene shown on film; that is, there is generally much more to a scene visible to humans than shows up in photos, and various lenses record different degrees of the total image.
View of Lake of the Woods from Flag Island, Minnesota.
View of Lake of the Woods from Flag...
www.calsky.com /lexikon/en/txt/a/an/angle_of_view.php   (392 words)

  
 Angle of View Calculator
This calculator determines the approximate angle that a distant object occupies in your field of view.
One is based on Distance being a line from the view to the edge of the object; the second is based on Distance as a line from the viewer to the center of the target.
At 10 meters, a 2cm marble occupies 0.1146 degrees of your view; a 20m diameter asteroid occupies the same subtended angle at a distance of 10 kilometers.
www.babtech-onthe.net /calculators/viewing_distance_calculator1.htm   (272 words)

  
 Fundamentals - Differences between Wide Angle and Telephoto
The shorter the focal length becomes, the wider the angle of view (wideangle), while the longer it becomes, the narrower the angle of view (telephoto).
* The relationship between focal length and angle of view is generally consistent regardless of the lens' focal length.
However, there are cases where different angles of view are observed depending on the difference in the focusing system of a lens and shooting distance.
www.tamron.com /lenses/fundamentals.asp   (1033 words)

  
 Luminous Landscape Forum > angle of view?
Jan 12 2006, 05:56 PM Angle of view is dependent not only on focal length but also on sensor size.
Many DSLRs have a sensor that is smaller than 35mm film, so the angle of view on those camera is equivalent to that of a longer focal length lens on a full frame 35mm camera; this is sometimes called the multiplier factor.
The diagonal angle of view of the 17-40mm lens is 104° - 57°30' which is just shy of the 108-63 you quote for the 16-35mm.
www.luminous-landscape.com /forum/lofiversion/index.php/t9812.html   (662 words)

  
 Super wide zooms - angle of view - FM Forums
For example, the angle of view on the Canon 10-22mm zoom is 107.5 - 62.5 degrees, while the angle of view on the Canon 16-35mm zoom is 108 - 63 degrees.
The answer to your first question is yes, and the way you find the angle of view when using a lens designed for a full-frame camera (like the 16-35) on a 1.6x crop is to divide the angle of view by 1.6.
The angle of view on the 10-22 already has the 1.6x crop factored in, so the quoted 107.5 to 62.5 AOV is correct on a 20D.
www.fredmiranda.com /forum/viewtopic_archives.php?TopicID=225329&page=0   (431 words)

  
 Axis Communications - Viewfinder
The two determining components affecting the angle of view, are the camera sensor size and focal length of the lens.
Focal lengths are constant but need to be converted in combination with the camera sensor size, to produce the final angle of view.
As you can see the angle of view from AXIS 221 /5 mm is comparable to AXIS 211 /3mm due to its smaller sensor size.
www.axis.com /techsup/cam_servers/lens_calculators/viewfinder/index.htm   (397 words)

  
 Boulder-Strewn Surface -- Narrow Angle Camera View
Some smearing of the image due to spacecraft motion is apparent in this scene, which was acquired as Enceladus raced past Cassini's field of view near the time of closest approach.
A wide-angle camera view centered on this location on Enceladus is available (see PIA06251), as well as a comparison view showing the position of this image within the wide-angle image (see PIA06250).
Views of the Solar System Copyright © 1995-2007 by Calvin J. Hamilton.
www.solarviews.com /cap/pia/PIA06252.htm   (268 words)

  
 Focal Length and Angle of View   (Site not responding. Last check: )
FL, as well as the CCD chip's format, is the major factor to determine the angle of view of a lens.
For example, a 6.0mm FL lens on 1/3" sensor format has 56.8 degree of diagonal angle of view and a 5.0mm FL lens on 1/3" sensor format has 66.9 degree.
The angle of view also varies a little depending on the manufacturer of the lens.
www.cctvconsult.com /pages/angle.htm   (230 words)

  
 Angle of View
The net effect of internal focusing is often to retain the same angle of view during closeups!
A traditional lens reduces its angle of view at closer distances.
That's why I've always giggled at camera makers who present this data calculated to minutes of angle, since the size of the slide mount clear aperture or digital sensor varies from model to model, even if the lens is perfect.
www.kenrockwell.com /tech/angle-of-view.htm   (929 words)

  
 JimDoty.com - Focal Length
The focal length of a lens determines its angle of view.
Long focal length lenses have a narrow angle of view and are often called "telephoto lenses".
A 150mm lens is longer in focal length and has a narrower angle of view than a 75mm lens no matter what format of camera it is on.
jimdoty.com /learn/lenses/focal_length/focal_length.html   (481 words)

  
 Picture Angle: Optical: Glossary: Learn: Digital Photography Review
The field of view is determined by the angle of view from the lens out to the scene and can be measured horizontally or vertically.
Because the aspect ratio differs between formats, the more universal picture angle, measured along the diagonal of the scene is often used.
A shorter focal length (such as a 28mm wide angle) produces a wider picture angle, while a longer focal length (such as a 200mm tele) produces a narrower picture angle.
www.dpreview.com /learn/?/Glossary/Optical/Picture_Angle_01.htm   (173 words)

  
 redrockmicro - Angle of View
Different lenses are used to tell a story based on their angle of view.
The focal length of the lens directly affects the angle of view.
The longer the focal length of a lens, the narrower the angle of view and the more it magnifies the image: The shorter the focal length, the wider the angle.
www.redrockmicro.com /aov.html   (180 words)

  
 Angle Of View In Photography - The Intimate Landscape
Angle Of View In Photography - The Intimate Landscape
So, it is natural for us to look at a grand view, encompassing all we see around.
You should train yourself to limit your angle of view, restricting it at will.
www.articledashboard.com /Article/Angle-of-View-in-Photography---The-Intimate-Landscape/131696   (659 words)

  
 Angle of View: Film Size, Print Ratio, Focal Length
There is also an explicit formula for calculating the angle of view of any given lens focal length across any size piece of film.
Angle of View = 2 * ArcTan(Film Dimension / (2 * Focal Length * (1 + Magnification)))
Rui Salgueiro's Field of View Angle Calculator; a neat use of forms that is worth checking out.
www.colloquial.com /photo/formats.html   (549 words)

  
 Super Wide Angle Lenses shootout - Nikonians test review article
Wildlife shooters immediately liked the idea of their 200mm lens having the same angle of view as a 300mm lens.
While the gains in apparent focal length on telephoto lenses were praised by nature shooters, the downside of this “crop factor” was that now your 17-35mm lens lost its “super-wide” ability and became a pedestrian 26-52mm lens.
We approached this review from the perspective of the Nikonian who is looking to get back their wide angle of view that they were used to with an 18-35mm or 17-35mm lens on their film body.
www.nikonians.org /html/resources/nikon_articles/nikkor/af/wide_angles_shootout/index.html   (859 words)

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