From the CU Boulder campus in Colorado, I took images of Mercury from 12:13 to 3:40 MST, when the sun set behind the mountains. I used a Canon Digital Rebel 350D camera with a 1000 mm lens and a solar filter, mounted on a clock-driven mount.
I took 5 images every 5 minutes (except from 12:13-12:20, when I did 5 images ever minute) and averaged them using a program I wrote. I sharpened them a bit to bring out the important feature, but I did not over-sharpen in order to avoid the pixelation that happens in so many poorly processed images. I then put them together into a movie that's about 600 MB at full resolution (with the solar disk covering 1410 px). I shrunk it to 325x325 px (solar disk is 288 px, or 4 inches) so that the animaged GIF file is about 1.9 MB. At this resolution, I'm fairly happy with the results, but at higher resolution you can tell that the seeing was pretty bad at times. Oh, and the image files on my hard drive take up about 19 GB.
Anyway, I'm not uploading such a large file on the EA server, so I'm linking to it here:
Click Me (1.9 MB). I should note that since Mercury's speed across the solar disk was a little under 0.1 arcsec per sec, it travelled about 3.5-4 times its diameter between shots. But there was
NO WAY I was going to take even more images and have to spend even more time processing.
In addition, since I took some shots at the stages of ingress, I compiled them into the shot attached below. It shows the first 7 minutes of the transit. It's probably not even close to the best way to display it, but I'm tired now.