A single image can show earthshine, but the corona will be overexposed near the limb. From my 2017 exposure series, I can start to see the moon's features starting at 1/6s exposure at f/5.5, ISO100, but only if I stretch the image heavily. With an exposure of 1/4s, the Earthshine is less noisy and more clear:
Single exposure, 1/4s, ISO100, f/5.5
No single image has the dynamic range needed to get the result I wanted, so, just as Alan suggests above, I combined 32 photos spanning seven exposure values for my final image. My longer exposures are where the Earthshine in my final image came from.
Totality | Earthshine by Drew Medlin, on Flickr
What was your exposure setting for your image? Were you able to try to stretch this using some image processing software?
[Edit: add question to Tech Hiker]
Edited by agavephoto, 30 September 2023 - 05:47 PM.