Series of K-7 tests (vids)
Despite rumors otherwise, there is no AF during video mode. The double check is one reason (contrast AF is not as fast or accurate, especially in low light, as the phase matching AF), focus noise another, and processing capacity the third.
|Common Flashwing by digimania|
from canon dslr
|The Marilyn impersonator by Lee8282|
from Blowing in the Wind (Nature)