Beautiful weather to watch the Venus transit, the astronomical highlight event of this year. I spent the morning at the C200 campus in Heverlee in the company of Wega, the astronomy association in Leuven. Some astronomy amateurs have the most amazing telescopes ! I saw lots of gear which made me jealous, though my 20cm Dobson would have been a worthy contestant. I should have brought one of my telescopes with me, it would have been great fun.
Solar filters made out of millar or astrofoil are such a great tool. I usually use ocular projection, which is quite awkward, and solar ocular filters are just plain dangerous. The image trough an astrofoil filter is quite sharp too : on the right a snapshot of the sun through such a filter.