Taking Pictures of Air

Schlieren Photography has been around since 1864 thanks to German physicist August Toepler. This video demonstrates a low-budget technique to make Schlieren images just using a checkerboard and an inexpensive video camera. The background grid is a 1/3" checkerboard pattern purchased from Spandex House. Here's a direct link to the product: https://www.spandexhouse.com/finds-PS...