I have chosen the following three crops of each silde to examine the chromatic aberration. The sildes were scanned with 2900 dpi and magnified to 200%. Zoom lenses were tested at 20 mm.
Specifications: Canon EOS 3 or Pentax MZ-M, Fuji Sensia 100, f/8.

Some image processing applications offer a simpel (linear) correction for chromatic aberration. I tried to correct the CA of the following images this way. In the first line you can see the original crops magnified to 400% of the 2900 dpi scan. Below you find the the crops of the corrected images. The correction is optimized for the left crop each time.
As you can see, with some of the lenses it is easy to correct CA this simpel (linear) way. Other lenses however show a heavy non-linear CA that in parts even gets worse if you try to correct it this linear way. Look at the Olympus Zuiko 3.5/21. It shows a quite strong non-linear CA.
Specifications: Canon EOS 3 or Pentax MZ-M, Fuji Sensia 100, f/8.

But there is a way to correct even non-linear CA. I took the image with the strongest non-linear CA (Oympus Zuiko 3.5/21) and tried to correct it using PanoTools and PTShift. Here is the result: