Candela to lumens calculator, and lumen collection based on angle

[SammysHP]

Somehow more advanced system based on the same principle:

Beam Profiles V3 released: an alternative to spheres and white wall shots

[image] [image] Links Interactive example to play with User guide The actual webapp What is it? Beam Profiles was created to give people some powerful tools: an accurate way of measuring lumens without a sphere and quantitative alternative to white wall shots. Version 1 was designed for businesses that wanted high quality beam data. Version 2 reduced costs and simplified construction for reviewers. Version 3 focuses on bringing this tool into reach of anyone with a…