Just picked up a CaK module for my LS152 solar telescope and thought I would post some of the results of imaging. The module switches with the hydrogen-alpha module in a few minutes and consists of a herschel wedge to remove most of the infrared/heat, with a trimming filter assembly to pick out the CaK wavelength. The CaK light is pretty tricky to see visually so it is more of a imaging setup.
Anyway here are a couple of shots using the setup using a 2x (1800 mm focal length) and 3x (2700 mm focal length) barlows, plus a hydrogen alpha shot. These were taken on September 8 and 9 using a Skynyx Lumenera 2-1M camera.
I really appreciate the focal length on these and the second to last is wonderfully close, CaK is under rated but gives area around spot group great detail. I like CaK better than Ha sometimes.
Nice work Dave. Not seen a CaK image for quite some time. I think it has fallen out of favor a little internationally. Certainly some interesting detail you have on that image.
Thanks guys. The CaK is nice for a change and picks out different features from the h-a. I still think if you had to choose between the two you get more from the h-a, particularly since it is almost impossible to see anything visually with the CaK. However it is nice having the option for both with the Lunt CaK diagonals.
Noticed that I will miss the IISAC, as I will be back in Oz for a visit a little too late. Rats.
