Optics

Optics

Chromatic Aberration

Removes colored fringes along high-contrast edges. Enabled, Auto (finds the fringe colors by itself), Radius, Threshold, and amount and hue for purple, green, red and blue fringes.

Lens Correction

• Correct lens distortion (on by default): corrects the camera lens's own distortion for the zoom the photo was taken at, the way Lytro Desktop does. It bends the picture outward toward the corners, a little at wide zoom and about 10% of the way to the corner at full zoom. The distortion table was measured against Lytro Desktop's pictures of 15 ILLUM photos. Photos from cameras that do not record a zoom are left alone.
• Distortion: adds to that correction. Negative straightens barrel distortion (lines bowing outward), positive pincushion. The picture is enlarged just enough that no edge shows.
• Vignetting: brightens (or darkens) the corners; Midpoint sets how far from the middle it starts.

Flare

Reduce flare removes the haze that light scattered in the lens lays over the picture; Amount sets how much.