What is the material of Zuohang professional lens?

Zuo Hang's pro-shot material is TF family's "Flammable Boy" MV. In the MV of TF family's Flammable Teenager, there is a scene in which Zuo Hang puts his face close to the camera, breathes lightly and says a word. This shot surprised and excited many viewers, because Zuo Hang's movements were very charming and personal, which also showed his confidence and charm. In addition, this shot is also one of the classic shots in TF family MV, which left a deep impression on people.