One such thing occurred as a result of a stroll along the Waveney on Wednesday. There had just been a heavy shower and a rainbow appeared across the river. I took a couple of quick snaps, but when I got home I discovered an artefact on the pictures:
|The artefact close-up|
So does anyone have any ideas what may have caused it?
(an aside: this blog post led to a debate between Sencan and myself about whether 'artifact' or 'artefect' is correct in UK English. It turns out that both are applicable, although 'artefact' is preferred. We are that sad).