My recently constructed homebrew CaK filter is proving itself to be a cut above the commercially available units as can be seen in this 40 frame animation which spans about 20 minutes of real time in the life of our star. Normally the spicule layer and prominences on the solar limb cannot be seen in CaK wavelengths, and can only normally be viewed in Ha light at the other end of the spectrum. I knew this region was going to be a suitable target with the active regions just about to pass over the limb likely to be throwing out plasma held aloft by the magnetic field lines. The seeing conditions were not ideal for working at the 2000mm focal length the 100mm scope was running at for this animation, but I didn't want to miss the chance of capturing this. In better seeing conditions with some post flare loops the results would be stunning - i'm sure i'll get the chance at some point in the year! hopefully!