Nope. According to Imatest tutorials: CA (area): Chromatic aberration area in pixels. An indicator of the visibility of CA. The area between the channels with the highest and lowest levels. In units of pixels because the x-axis is in pixels and the y-axis is normalized to 1. Explained in the page on Chromatic aberration. Measured in along the axis indicated by Profile on the upper-left. Meaning: Under 0.5; insignificant. 0.5-1: minor; 1-1.5: moderate; 1.5 and over: serious.Lou Jost wrote:Miljenko, can you explain what the CA numbers mean? Unlike the resolution numbers. I suppose they are nonlinear with respect to anything that photographers can easily interpret. This means that it is difficult to know if the difference between, for example, 0.50 and 0.55 is large or small. The scale range from 0 to 1, right?
Norman Koren explained this area concept in detail here: www.imatest/docs/sfr_chromatic/