Yojimbo -

I know there is a visible halo in the F-22.

The others there are possible halos, but I would have to look at the original, because it could be the clouds/sky not coming through properly.

The last two Apache photos come to mind. The 2nd to last has a highlight above the rotor blades in the middle. Then in the last one there is a slight edge around the closest rotor blade. Could be a halo from my pp (likely is), but the photo was take at 1/50 and when I darkened the exposure it just didn't compensate.

Good eye though. Very, very good eye. Thank you!

I am using a new sharpening tool and so far I have had good results with it.