On the 20.03.2015 we had a partly eclipse of the sun. The maximum degree of coverage was between 75% and 80%.  Because of having an un-optimal sunfilter (only a ND64) I had a little bit of fear the sensor would die so I only took short time for focusing. The result is not optimal, but you get the idea :)

And heres the “making off”. Tethered Shooting, Macbook, 500D + 70-200 f2.8