HDR blend of 12 images, each image processed to reveal the corona details before blending into a single image. Prominences added back as a separate layer. 1/4000 to 1/2 second exposures f/6, ISO 200, 480mm Canon T3i camera Explore Scientific ED80 APO refractor telescope, 480mm focal length Celestron Advanced VX mount Explore Scientific field flattener - courtesy of Jim Gardepe