Light meters have been a bit out of fashion for a while – although you’ll get my Sekonic from my cold dead hands! – but they have started to make a little bit of a comeback over the last couple of years. It’s partly due to the resurgence of film and cameras that don’t contain built-in meters but also the value that some photographers find it provides in their work. The only problem is light meters can be expensive!
Well, now there’s a new open-source incident light meter that you can build yourself for less than $50 – assuming you can find a Pi selling for RRP. It’s been created by VEEB, a group of Switzerland-based photographers who’ve taken to building their own kit. The Photon was created to provide incident light readings for shooting with Pentax Hasselblad and other old film cameras the VEEB team had that don’t have built-in light meters.