Hi all. I put out a lighting guide some 2 years ago shortly after Poser 11 came out. I've done a second edition which corrects some errors, simplifies methods (less math!), and covers more lighting situations. There's 80 something pages of stuff, so people should find 'something' new in it. I've also published an Excel spreadsheet of calculators for Poser lights. The instructions are in the back of the guide, but are pretty self explanatory (at least to me... heh!)

Link to guide: https://www.sharecg.com/v/90383/browse/3/Text-Entry-Tutorial/Lighting-Relationships-in-Poser-Second-Edition

Link to calculators: https://www.sharecg.com/v/90382/browse/3/Text-Entry-Tutorial/Poser-lighting-calculator-spreadsheet