Today I decided to try to take some picture in CaK and white light. The weather is good but the seeing is not. I had problems focusing due to the wind and to the cold coming up from the roof.
Here’s a 1/4 disk in CaK (the area with the 3 new ARs):
I used the Celestron Omni 120/1000 with a focal length of 2250mm. Lunt B1200 CaK diagonal and DMK41 mono camera.