Longitudinal chromatic aberrationformula

DxO algorithms correct chromatic aberration by aligning the geometric position 
of each color in the scene being photographed.

Longitudinal chromatic aberrationreddit

The resulting measurement makes it possible to establish a maximum chromatic aberration value on a precise scale. When the value is under 0.03 mm, it is not perceptible. Between 0.03 and 0.06 mm, it is visible.
 When the value is over 0.07 mm, it becomes problematic.

Because chromatic aberration varies according to the focal length and distance, DxO algorithms factor
in these two key parameters to correct chromatic aberration in RAW and JPEG images more effectively.
 As a result, the software removes colored outlines without degrading a photo’s color and detail.

The second type of chromatic aberration is called longitudinal — or axial — aberration. 
This is when the different wavelengths of light are focused at points in front or behind
 the surface of the camera sensor.

Longitudinal chromatic aberrationcauses

Unsightly fringing can spoil fine detail in an image,
but clumsy corrections can be too heavy-handed. 
DxO’s meticulous corrections ensure that images are corrected without any unwanted consequences.

Sphericalaberration

The amount of chromatic aberration in a photo depends on the type of lens used as well as other parameters: aperture value, focal length, and focal distance.

The phenomenon of chromatic aberration occurs when the lens is unable to converge all the colors upon the same point. Chromatic aberration appears as red or purple fringing and is especially visible in areas of high contrast.

Transversechromatic aberration

For detailed specifications, please consult the individual product label and the Straumann® Product Catalog (026.0023/en).

White light is made up of a full spectrum of colors, as observed in rainbows or when light is split
 through a prism. Each different color has a different wavelength and is refracted at a slightly different angle.

DxO algorithms correct chromatic aberrations by removing colored outlines without degrading the photo’s color and details.

To assess the lateral chromatic aberration of a lens, images of a dot chart are taken with different focal lengths and distances. At different points in the field, DxO’s engineers calculate the maximum pixel distance between the different color components (red, green, and blue) of the same dot.

Lateralchromatic aberration

Most lenses do a pretty good job of bringing the different colors together at roughly the same point,
 but sometimes, especially towards the edges of an image where there are strong transitions between
light and dark, chromatic aberration can appear as red or purple fringing.

There are two types of chromatic aberration. The first is lateral — or transverse —
chromatic aberration. This occurs when different wavelengths of light are dispersed
across the surface of a camera’s imaging sensor.