Thanks for your feedback. Until now I have never blogged about the creation of these illustrations, but it's a nice idea, there is tons of "behind-the-scenes" material. With regards to the viewfinder image, the actual path of light was drawn with the help of a Japanese optical engineer who was able to provide professional raytracing simulations.
Do you blog about how you go about creating these graphics? For example, this view finder image: https://exclusivearchitecture.com/images/technical-articles/... looks very impressive!
How do you simulate the rays+eye?