Open Source Camera Development
Fully open source hardware camera is doable using Beagle Bone open microcomputer, a touch screen, a photodetector chip, lens, battery pack module. The concept is to produce modular design that cost, say $100, for a state of art, professional grade cinema comparable to Apertus but at 1/10 the cost.
The cost is kept low by modular parts, which are part of a toolset of interchangeable parts that never lose their value. And eventually we go to Libre Silicon for producing the chips.
The other way is to use dedicated chipsets such as AXIOM Micro