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I think that this is a misunderstanding of leveraging ISO invariance to protect the highlights. To do this you keep exposure the same (same aperture and shutterspeed) amd use a lower ISO and brighten in post. ISO is not a part of exposure, but it does affect exposure with an automated exposue system. The above approach involves brightening in post rather than with the ISO amplifier in the camera. To avoid color shifts and other undesirable effefts is is advisable go brighten no more than 3 stops in post.
Excellent IQ for this ISO. Very good color.
The Wood Duck had no editing done other than cropping in LRC. The only editing for the Sparrow was using the masking slider and cropping in LRC. Nothing else. The process is simple now when I get the settings right in camera for the bird shot with the ability to use the in camera setting instead of the adobe defaults.
My maximum ISO is set at 25,600 ... rarely gets that high but not unusual to have 12,500. Whether I have to do any noise reduction in LRC or occassionaly Topaz DeNoise AI depends on the subject, shadows etc. and how well I did with the camera in the heat of battle with the birds.
Very impressive results, I am pushing my limits on ISO up to see how well they will turnout while maintaining the shutter speed to capture without blur. Great discussion by all.
