Though I haven't acquired the gear that I want (or would be more ideal) for night sky shooting, I couldn't resist putting my new K-70 to the test. I set up in the Mount Burdell Open Space Preserve near Novato, CA. Overall, I was pleased with the results, though I seem to need a little more practice focusing at night. This lens has some noticeable coma, and 15 seconds may have been just a little too long.
This image is processed and consists of a stack of 8 exposures.
Camera: Pentax K-70
Lens: HD Pentax-DA 20-40mm F2.8-4 Limited
ISO3200 f/2.8 15s x8
Focus: Manual
Astrotracer: No
Drive Mode: 2s timer