It is easy to see the camera settings for any picture taken on a digital camera or smartphone — not so when taking photos on a film camera.

Alessandro Genova has sought to solve this problem by building a device that not only saves essential information such as shutter speed, aperture, and ISO; but can also act as a light meter.

Genova outlines the tracking unit in a GitHub repository that’s labeled as a “film photographer memo and light meter.”

A digital camera stores all kinds of metadata alongside each picture it takes. Arguably the most important metadata it stores is the exposure settings that were selected when taking that picture (aperture, shutter speed, ISO),” explains Genova.

“An analog film camera typically doesn’t store any of this information. Some photographers carry around a notebook where they write the exposure settings for each picture they take.”

More on PetaPixel and Genova’s full project can be seen on GitHub.