Now, what about the behavior in strong contra-light and with specular highlights/reflections on water?
I've uploaded two shots which really test the capabilities of this lens and normally produce purple fringing (see a really bad example of this effect from a Tokina 80-400 lens here
Let's go for the reflection example first.
This shot was done at 70mm, f/2.8, 1/8000 sec, ISO 200, -1EV. If you click on the images you get straight to the flickr-page of the large original.
I'm showing you two 100% crops
, one from the center, one from the foreground. And each crop is displayed in two versions: The first is processed normally (standard settings in CaptureNX), the 2nd version with loCA-suppression dialed in at 50%. I'll come back to that in a second, just watch for the red/blue outlines of the specular highlights in both versions:
Now the second crop:
Well, what's "loCA-suppression"? loCAs are longitudinal color aberrations that are purple in the foreground and blue/green in the background (see a really bad example of this effect from a Nikon 180/2.8 lens here
). CaptureNX has a switch (normally set to OFF) that makes the software try to eliminate this special form of CAs that are harder to kill than the "normal" (lateral) CAs. As you can see, it is quite effective in this case.
Btw.: The large original was saved w/o loCA-suppression.