Here’s a calming video showing how Sigma makes a 70-200 lens

In the age of highly produced and dramatic videos, sometimes it’s nice to have something simple. This video of the Sigma lens manufacturing process is just that. Coming from the YouTube channel ProcessX, the video shows the Sigma 70-200mm F2.8 DG DN OS being made in the Sigma Aizu factory in Bandai Town, Japan. It walks through the entire process, including the coatings that go on the glass, lens bonding, quality control and more.