Great minds discuss ideas; average minds discuss events; small minds discuss people.
Eleanor Roosevelt
Let's get the ideas in order before discussing equipment and processes.
Main Reference
Secondary References
Wilkes, Thomas C., et al. "Ultraviolet imaging with low cost smartphone sensors: Development and application of a raspberry Pi-based UV camera." Sensors 16.10 (2016): 1649. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5087437/) pdf
Deep Ultraviolet Imaging Using the Raspberry Pi HQ Camera Steropi Blog
Raspberry Pi Documentation: Camera (https://www.raspberrypi.com/documentation/accessories/camera.html)
Giving Linux a Camera Stack: libcamera's 3 Years Journey and Exciting Future (YouTube video)
Radiometry vs Photometry
SI Units for Photometry
More on Lumens, Lux, and Nits: https://www.konicaminolta.com/instruments/knowledge/light/concepts/04.html
https://www.olympus-lifescience.com/en/microscope-resource/primer/lightandcolor/humanvisionintro/
https://www.olympus-lifescience.com/en/microscope-resource/primer/lightandcolor/humanvisionintro/
https://en.wikipedia.org/wiki/Lens
Feedback
Equivalence
sudo apt-get install rawtherapee