|Click to enlarge|
I had planned to take an image every ten seconds and then make a time lapse- I set up a tracking mount along with my Stellarvue 90mm triplet refractor, a Lunt Herschel Prism, and my Canon T2i with a 2x Barlow lens. As the Sun dipped toward the horizon I made sure everything was set- and sadly, I forgot to turn off the tracking! So instead of the telescope remaining fixed on the summit observatories, it continued to track on the sun as the observatories slowly drifted up out of the field of view! Regardless I ended up with a few nice images which I present here. As you can see we had a large number of clouds drifting through and it made for some very photogenic moments.
First up, are two images of the Sun as it was descending behind Kitt Peak. As always, click them to enlarge to full size and if your browse automatically resizes images, you may need to click them again.
Finally, once I pulled the camera from the telescope, I put a 24-105 zoom lens on with a polarizing filter and took the image below at the 105mm setting. It was 1/500 of a second at f/4.