Purple fringing is usually attributed to chromatic aberration, although it is not clear that all purple fringing can be explained this way. Attributed causes of purple fringing include:
Chromatic aberration
Sensor effects: ...
Fringing
Colour shifts, usually seen around the edges between a bright and a dark area in an image, e.g. a tree against a bright sky.
Fringing
A white fringe appearing on the edges of objects in the image.
A ...
Fringing
Fringing, commonly associated with less-expensive lenses, describes the 'bleeding' of color along the edges of contrasty portions of a digital image.
Fringing
This occurs when a digital image is artificially sharpened. The term usually refers to a white fringe that is apparent on the edges of objects in the picture. Fringing can also occur as a result of compression.
Color fringing
Chromatic aberration and purple fringing are two distortion effects that can negatively affect photographs. There are a couple of things you can do to minimize these effects.
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Purple Fringing Fix
Small purple fringing (purple highlights around objects)can be fixed digitally by selecting the area and adjusting the color to include more blue instead of magenta, ...
Purple Fringing - Also known as Chromatic Aberration. This is when the lens is not able to achieve focus of various colors in the focal plane resulting in a fringing effect around the other image.
Colour fringing
A problem with a CCD that makes random colour pixels appear around edges.
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Purple Fringing
In digital photography terminology, purple fringing is an undesirable purple "rim" that surrounds areas of high contrast in a digital image.
It's very obvious when photographing people against a bright (but not deep blue) sky.
"Purple Fringing" and Microlenses
Although the above chromatic aberrations can be purple in color under certain circumstances, "Purple Fringing" usually refers to a typical digital camera phenomenon that is caused by the microlenses.
Color fringing (lateral colors at the image borders) does leave a distinctive clue in the MTF, but you need to examine a series of MTF curves measured at different apertures to detect it.
Fringing and light falloff are worse with full frame sensors since the edges are naturally further from the center. They are also much more common with wide angle lenses due to their large angle of view.
Figure 1: Color Fringing
Figure 2: Color Fringing Removed
Most photographers tend to work in an RGB color space (e.g., sRGB or Adobe RGB). RGB color spaces have three channels, one for each of the three colors (i.e., red, green, and blue).
Usage: Color fringing correction is turned on/off by ticking the corresponding checkbox in the processing options dialog.
More information:
Read more about chromatic aberrations
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Expansion of dynamic range ...
Also known as color fringing, this problem is caused when the camera lens do not focus the different wavelengths of light onto the exact same focal plane.
But for digital the result can be color inaccuracy--normally visible as reduced saturation--or in extreme cases even color fringing. There is a design for lenses which minimizes this effect.
Appears as opposing dual-color fringing along a radial direction from the image's center, and increasingly so near the corners of an image. Colors are often cyan/magenta, along with potentially a blue/yellow component.
Aliasing & Antialiasing Aliasing, also known as moire fringing, describes the step-like edges that diagonal or rounded lines take on in digital images. ...Read More » ...
This 'purple fringing' can sometimes be found on digital cameras as well. To what extent it becomes visible is dependent on the sort of image and the presence of dark or light edges in it.
Also, even when an obvious color fringing is present, the fringes, in the case of lateral color, will be sharp, and the eye will see the image as sharp, ...
The central and southern sections of the park are comprised of coastal reefs fringing the main island and several other smaller offshore islands (including a large inactive volcano known as Manado Tua).
With panchromatic black-and-white and all color films, it is essential that both blue and red light rays be brought to focus at the same plane; otherwise, color "fringing" and unsharpness will be evident.
If you find a big fish infringing on your copyrighted work. I recommend sending them an invoice for using your work. Make it a reasonable amount, and they should pay it.
Really good optics minimize color fringing, but some fringing is inevitable, especially when corner areas of an image are highly magnified.
Also known as purple fringing. It is fairly common in 2MP digital cameras and above, especially if they have long telephoto lenses. You can see it when a dark area is surrounded by a highlight.
Chromatic Aberrations, Fringing, & Flare
I did not notice any aberrations or fringing in the 100% crops of the photos that I took, and the photos pointing toward the sun did not have any significant flare. Well done, Panasonic! ...
The drawback is a loss in dynamic range of the image and the dreaded purple fringing (sometimes erroneously referred to as "Chromatic Aberrations") of overexposed portions of the image.
DxO Optics Pro is a program which automatically and completely corrects for lens distortion (even from fisheyes), color fringing and vignetting, and even corrects for unsharpness as needed.
Red / Cyan - compensates for red/cyan color fringing.
Blue / Yellow - compensates for blue/yellow color fringing.
Defringe - choose Highlight Edges or All Edges to see what produces the better result.
Step 19: Effects Panel ...
SS 2 pass + Purple fringing- This is like the 2 pass method above but it also removes a chunks of blue (purple) noise - much the same way as "Dark Night Shots" option in HotPixels applet.
5's award-winning Optics Engine corrects lens problems, such as distortion, softness, vignetting, color fringing and astigmatism, in images made with supported cameras and lenses (a list is available on the DxO website).
I also use the perspective controls in PSCS3 to correct distortion and correct any color fringing and vignetting. Perspective corrections have a use beyond the obvious architectural applications.
A lens corrected for chromatic aberration (color fringing) at three wavelengths in the visible spectrum.
Aperture Priority
(A) Exposure mode where the camera determines the optimum aperture for you.
Chromatic aberration. An image defect, often seen as green or purple fringing around the edges of an object, caused by a lens failing to focus all colors of a light source at the same point.
Leica is claiming several technical milestones, including corner-to-corner sharpness, a sophisticated method of minimizing color error and color fringing at sharp edges, and over 50% contrast.
Chromatic Aberration - Purple fringing that occurs along the edges of ...
Use a trusty point and shoot rather than carting around all your gear. Having your complete pack connotes you are taking charge and infringing on their time. Using a point and shoot is less intimidating, and you're still getting your fix.
Tip #6 ...
While a chromatic aberration can be purple, the term "purple fringing"-a purple/blue fringe along high-contrast edges-refers to a separate phenomenon that is generally caused by characteristics of the sensor.
A measure of how accurately the color signals are reproduced. Poor chroma signal-to-noise ratios are evidenced in color fringing on edges of objects and what appears to be thousands of moving dots in large areas of highly saturated colors ...
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), ...
However, nearly all digital cameras sold today, including the current Canon EOS lineup, include infrared-blocking filters as part of the image sensor assembly to keep reddish IR fringing to a minimum.
This effect often occurs in digital cameras of two megapixels or more, using a long telephoto lens. It can be seen as a ring of purple color separating a dark area of a picture from a light area that surrounds it. This 'purple fringing' can be ...
Cheap auxiliary lenses add horrible distortion and purple fringing to your shots.
LD
Low dispersion glass, or UD (ultra low dispersion) or SD (Super Low dispersion), please refer to "ED", basically, refers to optically superior glass - price too! Dispersion sometimes also refer as "colour fringing".
not take into consideration the glossy surface of the Low-Pass filter, Infra-Red filter and microlenses of the digital camera. These glossy components cause internal reflection in the camera and sometimes create additional flare and purple fringing ...
The chromatic aberration tool set comes in quite handy when you have color fringing in adjoining areas of high contrast. The vignette control tool allows you to compensate for light falloff in the corners of your image.
 See also: Image, Camera, Light, Lens, Digital
  
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