It's often easy to forget just how good cheap lenses are in the real world.
It's pretty common for us as photographers/filmmakers to get caught up in lens sharpness tests and MTF charts, when really, what matters is how a lens performs in the real world. YC Imaging has done us all a great service in reminding us that a cheap $50 Yongnuo lens is still a pretty dang good piece of kit when used correctly if you can't afford the $1,300 Canon 50mm f/1.2L.
In the video, YC Imaging provides a series of photos and videos for us to scrutinize in order to guess which lens is the more expensive one? While I don't want to spoil the video here, I will say that I got it right. Am I gloating? A little bit. But I found that the video autofocus test gave it away the most.
One thing that a more expensive lens can give you, other than a sharper image, is the feel. A professional lens looks and feels more professional. They are more likely to be weather-sealed and generally have a better resale value as well. A cheap lens is always cheap, the same way that an expensive lens is always expensive.
How do you think the lenses stacked up to each other? Did you guess correctly?