Crop Factor Issue – Tony Northrup Answers To Critics

Days ago I posted a video by Tony Northrup about crop factor and how some companies are (supposedly) misleading their customers when it comes to crop factor, ISO and aperture, and about how these interact one with the others.

Well, the post started a sometimes overheated discussion with lots of comments. Now Mr. Northrup posted a new video where he answers to critics and adds some corrections to his previous video.

What do you think about this issue?