I am maybe a little late in posting this, but following my recent blog post on Christopher Go, of Cebu City, Philippines, I feel that this entry is still relevant.
Christopher has posted some spectacular images of the Mercury Transit in 2006.
He used a Solarmax 60 Hydrogen Alpha Filter, attached to an Astrophysics AP130EDF refractor and of course his DMK 21BF04 FireWire camera.
See more photos on Christopher's web site: