Thank, Cliff,

The BLUE on the bird’s head is not color fringing. I will send you an e-mail showing the BLUE stuff in the unprocessed raw file.

As far as the blue color fringing around various parts of the bird, I understand that juicing up the BLUEs in Photoshop and I understand that DeNoise can exacerbate them. When I note them, I usually just ignore them in part because they are most prominent in the JPEGs. I try to keep my post-processing simple and fast.

much love, artie

Artie, I suspected (from experience with my own images) that the blue might be color fringing. Copying the larger JPEG and looking at it at 200 or 300% show that is the case. Magnified, you see blue around edges of the bird as well as that little bit in the white plumage. With my lenses, the blue is usually there to some degree; choosing Auto Color Balance minimizes it, at the cost of making the image unattractively warm, but shifting the color balance toward blue, which I often prefer, makes the fringing worse. Topaz DeNoise seems to aggregate/exaggerate blue fringing even more. Lately, with plain sky or water backgrounds, I’ve been using DeNoise only on the subject, then smoothing noise in the background by inverting the previous selection and using another program (a leftover older version of Imagenomic Noiseware in my case, though lots of other programs would work fine on such backgrounds).