I've upgraded to version 4 and so far so good until I was to correct the chromatic aberration in one photo. I like to shoot wide open with my normal lens and the Canon 50mm f1.4 produces significant halation which i often like but not so much when it is mixed with chromatic aberration.
Long story short; i like to fine tune CA with the sliders as it gives me a lot of control and allows me to practically eliminate CA from the haliation.
Instead, Lightroom 4 has either a "defringe" (in manual mode) check mark which is fully automatic and does not seem to provide any manual fine tuning. (has no effect on CA in haliation areas) There is a "Remove Chromatic Aberration" in the Profile lens correction mode but it can only be enabled when the lens profile is enabled and it also does nothing for photos taken with this particular lens (when haliation is combined with CA).
Why isn't there a separate set of sliders to control CA anymore? What's the reasoning behind this? I understand automation makes it easier in some cases but the exclusion of manual control does not seem to make sense.