There will always be arguments about the "zoom" and its definition. The photographer's story and the average person thoughts.
The results after changing the lens from 1x to 3x to 7x each one is 'zoomed' in for the last . Most will understand...
I don't see anything wrong with taking this drone video, but look, people want the cheapest meat, eggs and milk. You're not gonna get that on a 10 acher farm with 2 cows. Don’t really know how to spell acher!
Excellent question! I was being hypothetical, but I had at one time a 500mm.... maybe it was f/4. Dunno, maybe it was built from a telescope, but it was a light cannon for sure!