CLEAN : Brazil police raid Lulas hotel in corruption probe

The video tutorial provides an overview of different camera lens specifications, focusing on 50mm, 40mm, and 60mm lenses with various apertures. It begins with a brief introduction to 50mm and 40mm lenses, followed by a detailed exploration of 60mm lenses, particularly the F2.5 and F2.8 variants. The tutorial aims to help viewers understand the differences in lens specifications and their implications for photography.

What new insight or understanding did you gain from this video?