vignette problem

[kala]

Pls find attached jpg file which results banding problem at printing...

Tried the same effect in illustrator / photoshop / corel same results..

can anyone us help to sort out this issue pls

regards
kala

 

[topdot]

Hello Kala,

This issue is typically due to color calibration curve that is not very smooth. Quite often, if you use too many nodes in a tone calibration curve (for example between 5% increments) it becomes difficult to maintain a smooth curve that renders vignettes that show a gradual change between percentages. You can test this by temporarily de-activating the curve being applied to this color and observe the results. If you prove that the curve is causing the problem, then the solution is to reduce the number of nodes to about 5 or 7, carefully maintaining the same shape of the curve you are using.

Ricardo Bellizzi