I captured sunspots on Aug 4th using the Thousand Oaks on my lens and again on the 9th. I think it was on the 3rd, when I started to test the Thousand Oaks filter, I didn't capture any sunspots. On the 4th I thought my camera sensor was dirty, haha so I confirmed the spots at NASA's todays sunspot site. Both were in the same region, labeled 2670 on the website. The Aug 4th had 2 spots, one big & one very small located lower left-- but only the big spot on the 9th, located on the right side of the sun. NASA's site--
I have an extra 8x8 sheet of the solar film that I'm thinking about using to make binocular filters. I'm still chewing on the idea.
I read online the sun is in its 11 year cycle of low activity, so there will be times of no sunspots. Also read it's possible the corona during totality won't be as big due to the current cycle. I suppose we'll know soon enough.