A HDR composite image of the August 21, 2017 total solar eclipse showing the star Regulus, the Sun's corona in HDR, with the diamond ring, chromosphere, prominences, flares, and earthshine.

The diamond ring image is stacked with a 9 image HDR composite of the corona taken right before the diamond ring appeared using a Vivitar 200 mm prime lens with 2x teleconverter. The earthshine data was taken using the Questar and downscaled to match the scale of the stack from the 200 mm lens. A Sony a6300 was used with the 200 mm x 2 and a Sony NEX-5N with the Questar.

This is a work in progress, so the image isn't linked to a full resolution version. I expect a final version in the next week or two. This is my first HDR solar eclipse image; let me know what you think.