Sprite above Austria: amateur colour photo from Hungary
As she examined the photos later she has discovered a sprite on one of them!
The peculiar side of the story is that she took the picture at ISO400(!) with 13 second frame integration period. The camera was a Konica-Minolta Dynax 5D DSLR equipped with Sigma 20mm F1.8 DG RF lens. The actual F value, however, was 2.8.
The story was published online in Hungarian on the Hungarian news portal of astronomy.