The last grading examination of the year has come around for First Tae Kwon Do Western Australia, and hundreds of students were in attendance as candidates. Over the course of a morning and afternoon, Master Vernon Low taught instructors and black belt members, then proceeded to examine the candidates submitted for testing.
Lighting in the venue was very good, with plenty of daylight coming in through high windows, and only a little fluorescent light impact in certain parts of the hall. This was maybe most evident on the stage, where the newly promoted black belt members had their portraits taken at the end of the afternoon.
Depending on a few factors, it is possible to catch different colour casts, as with the images above. Both images have been colour-corrected for the white uniforms at chest and shoulder level, but the first image has a distinct green cast in the shadows, and the second image has a less objectionable but still noticeable pink cast in the shadows.
I believe that one way to minimise this artifact is to have a longer exposure duration (or ‘slower shutter speed’ in casual terms), ideally with the camera steadied. This might not always be possible; the best solution is usually to have better lighting, whether environmental or by using a flashgun appropriately.