Barrel distortion
A lens aberration that causes straight lines at the edges to bow outwards giving a barrel-like form
Search SWPP and BPPA
Information provided by: SWPP BPPA
More Photographic Terms ...
Barrel distortion
Techniques Glossary Barrel distortion
A lens aberration that causes straight edges to bow outwards, giving a barrel-like appearance.
Barrel Distortion
Image distortion produced when the position of the camera lens is at its widest angle. Lines you expect to appear perpendicular are not.
Barrel Distortion
As previously spotted on some Japanese sample shots the 950 does indeed suffer from barrel distortion at it's widest angle (38mm).
Barrel Distortion - If you take a photo of a seascape with a wide-angle setting and the horizon seems to curve in the image, you've been hit by 'barrel distortion'.
barrel distortion noun
a type of image distortion in a rectilinear projection where scale increases with increasing distance from the center of the image.
Barrel Distortion
Straight lines are bowed in at the edges of the picture frame re sembling the sides of a barrel; pres ent in small amounts in some wideangle or wideangle-zoom lenses, bu~ uncorrected in fisheye lenses.
Balance ...
Barrel Distortion A lens effect in which the straight lines in an image appear to be inflated or sphere shaped. Bellows Attachment A flexible, light-proof enclosure placed between the camera and the lens for close-up and macro photography.
Barrel Distortion - This is distortion caused by the lens, that causes the outer edge of image bow outward.
BARREL DISTORTION - Image distortion caused by a lens, where the edge bows outwards like a fisheye or wide-angle lens's image.
Barrel distortion
Lens aberration (distortion) where straight lines are formed as curved lines in the image. These barrel shaped lines are most noticeable along the edges of the photo.
(see Aberration & Pincushion effect ) ...
barrel distortion
This is an optical distortion common to wide angle lenses where the centre of the image appears larger than the edges. With rectangular camera formats this distortion gives rectangular subjects a barrel shape.
Barrel Distortion
Barrel Distortion is a problem associated with wideangle lenses whereby the image appears distorted outwards.
Bar ...
Barrel Distortion - A common geometric lens distortion causing an acquired image to pucker toward the center and be "rounded" along the outer edges. See examples of it at Andromeda's LensDoc page.
barrel distortion
image effect that spreads the center dimensions of the picture.
Barrel Distortion Edit
When straight lines bow out towards the edge of the frame (like the profile of a barrel) it is known as barrel distortion. This is typically found to some extent at the wide end of many zoom lenses.
Barrel distortion is easily noticed when shooting any architecture or any other subject where there are straight lines present ...
Barrel distortion:
One of the common lens aberrations, where straight lines at the edge of the field are caused to bend into the shape of a barrel.
Base leg: ...
Barrel distortion, which gives the appearance that buildings lean inward, was caused by use of widest end of zoom lens. Zooming in will minimize or eliminate the effect.
Can be fixed with image editing software.
Barrel Distortion
This results in a picture that appears to be pulled toward the center within a circular framing.
Barrel Distortion
Lens distortion causing straight lines to "barrel" out; the opposite effect is Pincushion Distortion. Fairly common to some extent in cheaper lenses (and some expensive ones).
Bit ...
For example, a greater degree of barrel distortion is tolerated in lenses that span the focal length range from wide angle to telephoto with a focal ratio of 10x or more than would be acceptable in a fixed focal length lens or a zoom lens with a ...
For example, optical imperfections within a lens may cause distortions such as barrel distortion or pincushioning.
Barrel distortion: Distortion of the image where straight lines in the subject are formed as curved lines. It is most noticeable along the edges of the frame.
Bellows: Light-tight folding sleeve in view cameras that connects the lens to the body.
Distortion - Drag to the right to correct barrel distortion and straighten lines that bend away from the center. Drag to the left to correct pincushion distortion and straighten lines that bend toward the center.
One unintended distortion that's pretty common today is barrel distortion where straight lines away from the center of the photo bow outward (less common is pincushion distortion where the lines bow inward).
Average DSLR lenses have a certain degree of barrel distortion, which essentially means that the image will begin to stretch at the edges.
If the zoom lens of your digicam suffers from barrel distortion at the wide end of the zoom, chances are pincushion distortion will be present at the tele setting.
If the camera is too close to a flat subject, and a wide-angle lens is used, the subject may show barrel distortion. This is most obvious in subjects with straight lines or edges that fall near the edges of the image.
Side by side, the 12-24 on a DX digital body was sharper and had less barrel distortion zoomed all the way out than did the 17-35 on a film body and a comparable focal length. And it was a heck of a lot smaller and lighter weight.
It was about 80% successful, it matched the four parts ok, but did some barrel distortion to some portions and one hand was no longer attached to the models arm.
The common characteristic of a zoom lens is that is shows barrel distortions at the wide end of its zoom range and pincushion distortions at the long end. Somewhere in between there's usually a small range that is free of distortions.
Three common types of optical distortions that exist, particularly in wide angle lenses, are: Barrel distortion (where straight lines seem to bow out, as if around the sides of a barrel), Chromatic Aberration (where blue fringing is present), ...
Despite its super wide field of view, I was positively surprised how little barrel distortion this lens showed. I barely ever correct the distortion.
Another aberration, Distortion, affects the shape of the image (pincushion and barrel distortion) , but not the sharpness. It makes staight lines look "bowed" near the edges of the image.
spherical aberration, chromatic aberration, barrel distortion, pincushion distortion, and diffraction). All lenses have design and material limitations. Thus, the camera optics distort (i.e., manipulate) the scene that is captured.
The main advantage of the Canon lens has less barrel distortion at the short focal lengths. (It is also a slight bit faster.) That distortion could be annoying if you do a lot of architectural photos.
An ultra-wide angle lens which purposely introduces barrel distortion so straight lines near the edges of the frame appear to curve out.
Top of Page Flare ...
-Curvilinear distortion - combination of barrel distortion and pincushion distortion.
-Curvature of field - lens aberration causing a curved plane of focus.
However, the extreme barrel distortion of a lens like this might be problematic when showing a wheelhouse doorway.
This distortion is caused by the lens. It is fairly common in wide-angle lenses and usually only shows up when the subject is close to the lens.
Although barrel distortion can be visible sometimes, it would not be noticeable for 99% of your pictures.
Lens Distortion: An abnormal rendering of lines in an image; most commonly they may appear to be bending inward (pincushion distortion) or outward (barrel distortion). Correctable by using a plug-in in an imaging program.
That is to say, a photograph of a square object may appear to be either bulging outwards or squashed inwards, because parallel lines are being portrayed as curved. In fact, nearly all cheap lenses tend to have barrel distortion - it's just that ...
I could use the Straighten tool (the fifth one over) to straighten the horizon with a non-destructive crop but I will do that in Photoshop after I use the lens distortion filter to correct the barrel distortion of the horizon.
 See also: Barrel, Distortion, Camera, Image, Digital
|
