There is a difference, but looking at the video, there are a few shots from Justin which are as good. And the cameras/lenses give almost the same results for these conditions.

Chris, I did not. there is a slight difference, but it is almost impossible to notice if you do not have any idea about photography.

After some research, the other two "Pros" aren't really pros but pretty much hobbyists that have big social media following. Honestly none of the shots are like ad campaign level, its more like good wedding photography. As for sell ability there's no real advantage, Amateur shot's basic poses might work for catalog. Most of the Pro's shots wouldn't even work for generic stock. There's also the model, she's not an agency model and doesn't pose well. Amateur was also given a 35mm on a full frame camera which is hard to work with especially if trying for close shots. An agency model and 85mm or 70-200mm almost foolproof getting pro looking shots. And yes i'm a pro photographer with over decade shooting sports, runway, lookbooks, and catalogs

Olga the amateurs shots lack composition and focus, even though he had the more expensive gear. That is how you can tell which is taken by which. The point of this experiment is to show that no matter the gear, a professional photographer will produce better and more sell-able photographs than someone who has a base understanding of how to use a camera. Also, the professionals photographs are clearer and they knew how to interact and get the most out of the model as possible.

I guess you're not the target audience, then. Professional photographers and individuals with an interest in photography spot the differences. "It's not about the gear" is the title of the video. People who have dedicated their lives to this art say there is a difference between amateurs and pros, and some (even non-pros) do perceive it. It DOES prove something...

*is taken (why there is no "edit" button?

of course I'm not (: so none taken. but who is the target for this study? and who is the target for photography in general? because for a "normal" person it reveals nothing. you could put all those shots together and honestly I couldn't tell which one of them is take by an amateur.