To use the camera for totality I did not just rely on the standard camera settings. I turned off the automatic flash. This is important. I ignored the request from the camera to raise the flash. Another thing I did was go to the fixed aperture setting mode. I could use the dial to change exposures and the lens would remain at the fastest possible focal ratio (focal length over objective size) - wide open. I also set the ISO/ASA to 100. A bit slower than recommended by most photographers however I found it produced cleaner images with the Canon. The last major thing I did was manual focus. Setting manual focus (at infinity) using the dial was not really the best and the focus is a tad soft in my mind, but not bad as seen by the results.
So lets start with the mistakes. I started WAY TOO EARLY. When I looked through the view finder about 15-10 seconds before second contact I could see the corona! The following pic would have been unthinkable in the days of film. But the electronics survived.
|1/2000s about 5 seconds before C2, note corona visible.|
A bit earlier I snapped an image. About 10 seconds before 2nd contact. This is not recommended at al and could have resulted in a blown camera. I was amazed the camera handled the brightness but look at all the internal reflections!
|1/2000s about 10 seconds before C2, corona and internal reflections.|
|1/1250s about 5 seconds into totality.|
|1/800s - Adding more exposure time reveals corona but over exposes the prominences.|
|Corona structure revealed about 1/500 second.|
|Longest exposure I got hand held - 1/125s|
I won't do that again. Next time I bring a tripod because next time it will be on land and not a moving platform. Next time it is the "Great American Eclipse". Oh yeah baby!