More ghosts on swings

More ghosts on swings
This test didn't work as well as the others I posted. I tried to get my head to appear over each of four swings. But, things didn't line up right, so I cropped out half of the photo that didn't work. I used Sepia to hide some funny colors showing as much as for the "old fashioned" look. Anyways, it's still a neat effect, worth playing with.

IMG_0001

IMG_0001
I got a Canon Rebel T1i (500D) earlier this month (October 2009), and found it the sensors picked multiple red dots, when I had a long exposure, with the lens cap on (or just a dark background). I brought it in, and the store (Future Shop in Calgary) replaced it under my Extended Warranty. But, now, I have a single purple dot. I'm wandering how common is this type of problem? It doesn't appear with shorter exposure times used in daytime photography. So, is this something I should accept or protest about. Two in a row seems bad. But, it's something I think most people wouldn't notice.