I imaged the Sun using a Lunt LS35T Solar Scope combined with a webcam for hydrogen alpha and a MC 102/1300 with ND3.8 and K-line filter combined with a Canon 1100D, both mounted on an EQ3. While far from ideal setups (like full spectrum sensor), I managed to capture some nice shots.
The Hα disk is a mosaic of 8 frames: the solar scope has a very annyoing vignettation. A total of 20 GiB video data was filmed. Eruptions come from the same raws, edited separately and then added to the disk.
The K line images are a stack of 15 photos shot with the DSLR powered by Magic Lantern.
I detail the process below showing the stages of the imaging session in pictures. Processig was done in Canon Digital Photo Professional (raw->tiff16), Registax6 and GIMP.