Aiming to improve the image quality of the photos on his website, [Jean] needed an external flash unit. Say what you will about disposable cameras, but the fact that they were mass-produced ...

Excluding small accessories like memory cards and filters, it's the cheapest thing in my camera bag, yet one of my favorites. The bigger “expense” is simply taking the time to learn flash.

We get a brief shot of a large LED matrix (presumably being used for testing purposes) then footage of a lot of DSLR cameras with external flashes. These are mounted on racks to produce the ...