I think Tony probably understands how to get a good photo, and I’m still not sure if his videos are tongue in cheek or he is being serious and just not very forthcoming because he is trying to get his message into the length of the video. For some reason, there is a “part 2” to the video that is called “part 3”! He must have multiplied part 1 by 2 and added 1 just for good measure!
He has a shorter video that’s also filled with sins: https://www.youtube.com/watch?v=f5zN6NVx-hY
Comments to the videos are quite mixed. Some think the information is wonderful and explains everything, while others are much less enamoured.
I can agree with what I think his basic premise is: Manufacturer’s and others have confused much of the market by claiming a short lens in front of a small sensor is somehow equivalent to a longer lens in front of a bigger sensor.