Yesterday I've got my new tracker (iOptron SkyTracker), and took about 30 shots of the Orion Nebula (with my Canon EOS 6D and 70-200mm f/2.8 lens at 200mm, f/4, 6s exposure of each frame) and got home.
Here is a (cropped) sample from one of the raw files, and they are all the same, almost perfectly aligned etc:
All the other raws are perfectly normal like the image above. I've fired up DeepSkyStacker, filled the raws, (as this was just a tracker test, I don't have dark or flat frames) and gave it a spin with the recommended settings. After about 10 minutes, this is the result:
The result is just a glitch image consisting of vertical bars. Here is my recommended settings:
I also don't think there is any problem with reading the raws or aligning them correctly:
I haven't touched my stacking settings, it's as they are by default. What have I done wrong?