James - thank you. I understand you. I would have liked the feather a little more to the right and less of the rim visible, but I did not want to disturb the surface of the water by moving the feather.
Chris - thanks, I thought of cropping the photo to remove the rim, but this would have put the composition off-balance.
Tom - thanks, this is the reason why I (almost) always carry a camera with me. There are too many things to be missed otherwise...
Asher - thanks, the camera is fine. Otherwise all is as it was at that moment - the sun was the only light.
Best regards,
Michael