Popular YouTube channel 'How to Make Everything' has published a new video showing the creation of a camera lens from scratch. The project didn't start with pre-made components, as many DIY projects do, but rather with the purely raw materials, including sand and rocks for the eventual lens glass and copper housing.

The new project follows one involving the creation of a pinhole camera from scratch that the channel published in September 2018. This time around, the channel's Andy George spends nearly half an hour walking viewers through the lens creation process, including many failed attempts.

Producing clear glass presented one of the project's most time-consuming challenges, though casting the copper lens housing introduced its own difficulties. After weeks of work, however, the end result was a decently clear, though sadly ill-fated, camera lens with zoom functionality.