Thought I would try out the 5DH with the 300mm F2.8L. Here is the result of about five minutes effort. My neighbours racing pigeons. Exif data should be intact.
I know this is pretty old, but i always grabs me when i go through my photo's, thought you might like a look.
Its when the Total Eclipse was at Ceduna, i wasn't there, but was standing on my roof, with tripod, 600mm Lens attached to Pentax M7 film camera.
I reckon it looks like a frog being grabed by the half eclipsed Sun.