What do you see?

I saw the image the second i looked at it and knew what it would be but i didnt think it would be so clear when i closed my eyes. Im guessing you are basically just burning the image into your eyes being black and white and it just imprints in there for a bit and disperses as you refocus. Ok ill shut up now
 
How many F's in the following passage???

Finished files are the result
of years of scientific study
combined with the experience
of years...
​
 
Frank Zappa's drummer died...70 years old.

Man I remember them at Expo 67....