My DR-900X was in parking mode (time lapse mode) during the eclipse. When the video is played back at its normal 30 frames per second, the total eclipse comes and goes in just a few seconds. You really didn't notice much darkening of your surroundings until the eclipse reached about the 80% level. Then you noticed things slowly start to darken, with a sudden drop off the moment totality was reached. While I had several cameras along, I don't have any suitable solar filters or lenses for taking pictures of the eclipse. So I had to settle with getting pictures of the surroundings either with my dashboard camera or my iPhone.