In 1991 a friend who does serious amateur photography made a series of exposures of a solar eclipse in Hawaii. The idea was to vary the exposure lengths and then digitally align and combine the photos to produce an image with a much great dynamic range than was possible with conventional film. He took the photos and I digitized the negatives and aligned and adjusted the layers. We had much better detail than most eclipse photos - detail in the corona was amazing. Our secondary goal was to detect detail on the moon's surface from the reflected earthshine. We were just able to make out a few of the maria.
Others have tried similar tricks and digital cameras and much better camera mounts have improved dynamic range as well as reduced the effort. A serious bit of advice - if you ever plan to watch a total solar eclipse, forget trying to photograph it unless you have some sort of fully automatic camera. The chances are others will do a much better job and the event is so spectacular that you need to be spending your time in proper awe.
Today's Astronomy Picture of the Day is a modern example of this approach - totality from Svalbard, Norway.