The angle of candling was to expose the most visible detail at a given day of development, this wasn't usually the wide end of the egg, especially in later incubation.
I'd love to have less blurry pictures and did try a tripod and remote, the results were beautiful but not realistic, what the camera saw was not what the human eye perceives, and I don't want to freak out neophyte candlers who aren't seeing anything close to what the picture shows, sort of like the Northen Lights, I see smoky clouds but the camera gets all these fabulous colors, grrrr. I'll keep working on adjusting the balance but realistic pictures in this project is far more important than photo quality.