Hi,
This is my first attempt at nightscapes with my first DSLR. I have only owned my Canon 6D for 2 days before taking these at the ASV Star-Be-Cue. I am using a Sigma 24-105 f4 Art lens. The pictures at 105mm are mostly in focus as I could see stars in the LCD live view, but the 24mm ones are not as I was simply using infinity on the lens (could not see anything in the LCD). I have since discovered the 10x magnification in live view

and will try it out!
I made minor adjustments to brightness/contrast/sharpness using Digital Photo Professional. All pictures were taken using jpeg with in-camera noise reduction disabled.
Images: ISO 3200, 20 sec, 24mm, f4
Images: ISO 12,800, 20 sec, 24mm, f4
Images: ISO 12,800, 10 sec, 105mm, f4
Images: ISO 12,800, 5 sec, 105mm, f4
Images: ISO 12,800, 5 sec, 105mm, f4
Images: ISO 6,400, 30 sec, 24mm, f4
I will need to experiment with raw, noise reduction, lower ISO, and most importantly work on getting better focus
Any suggestions welcome.
Thanks for looking.