I haven't really mastered this H-alpha stuff yet but the prominence (top right) is worthy of posting anyway. It's about 150,000km (12 Earth diameters) high. There are a few others and some surface filaments too.
It's a single RAW shot through a PST using a 70D and barlow in place of the eyepiece. ISO 100, 1/40sec.
I've also been playing with capturing video (MOV) directly in camera, rather than using the laptop to grab the liveview.
The files are substantially bigger but I don't see any issues with compression.
These are the 70D at prime focus of a 8" SCT (2000mm, f/10).
IMAGE LINK: https://flic.kr/p/nATk4q
IMAGE LINK: https://flic.kr/p/nTieij
and then add in a barlow for a closer look
IMAGE LINK: https://flic.kr/p/nVag1v
IMAGE LINK: https://flic.kr/p/nATAPA
IMAGE LINK: https://flic.kr/p/nVag4M








