K1 and Irix 15mm, over approx 2 hours at Yosemite National Park. Conditions were perfect, with just enough moon to illuminate the falls and head walls. The reflection was due to the massive flooding on the Merced River as normally this meadow is dry, so I worked this spot a couple of times.
The K1 still is plagued by the white spots, which is sad, but thankfully C1 will take them out. The night skies in Yosemite are trying as I had to remove over 34 plane trails in this sequence, and not to mention the cars. I ended up at 1:00 am on this one and there were still a lot of cars driving around. The field in the foreground was hard to keep from being blown out due to cars pulling into the lot to check to see what I was up to.
Also the Irix 15mm is very hard to use at night. It gets what I would call a bit of double vision on the stars, if not perfectly focused. Also the lack of C1 and Pentax lens profiles is pretty telling amazing that C1 doesn't even have the 15-30mm.
Still a great camera and very nice to use at night.