musillid,
Thanks for watching and commenting the pictures.
There is no artifact at all,...simple plain clicking a popular LUMIX Panasonic DMC-TZ5.(10X)
But, .... whenever possible, I always do my pictures with the SUN approaching the western horizon .
Depending of your latitude and atmospheric conditions, at those lower angles sunlight may brake in a wider spectrum and potentially giving special tones to the picture.
This one of a known black Smyrna (our best) is a good example.
Francisco