[Carl]

Attached is a cropped section of a night shot just done with my new Canon 6D.
Problem: 22 images taken and on every image there are red blotches all over the image and they are all in the exact same position on every frame, no variation and not random like noise. There are also quite a few hot and dead pixels to add to the mess.
Images were all RAW, 4 min exposure and only at 800iso. Both RAW and converted JPGs have the same pattern.
I bought this camera as it is supposed to have a very sensitive chip suitable for astro imaging. Does it look like i have a dud or is this mess par for the course? I have a Canon 500d and never seen anything like it.

Can anyone shed any light on the issue please.

Regards,
a very worried Carl