Correct. But the sun is much too bright, you don't want to burn your sensor and use protection (solar film or nd filters) when focussing in advance - or take pictures before totality. When using filters you have to unscrew them, before totallity, which will throw you out of focus...
So NHT's solution is very clever IMO.
Thank you,
Two quick notes:
Focus: My Pen-F could not focus through the solar film (It's AF system was meh), I instead focused on some bluffs about 5 miles away then switched to MF in the Quick Menu afterwards. My EM1.3 had 0 issue focusing through the solar filter.
Sensor Protection: Even with the solar film, I still put a ball cap over my contraptions as another measure of precaution. And just removed it to take a quick photo every so often. Not saying anyone has to do this. I'm just overly cautious with my gear sometimes.
