[bbayer]

I wasn't aware there are $5 Pi cameras out there. Repo doesn't contain which cameras are used. Can someone point me out?

[revalo]

We bought a bunch of ov5647 camera modules from AliExpress. A quick search on the site yields a couple of listings at about $3.26 per camera, here is one of the listings, https://bit.ly/2W0Xui6