View Ronian's YouTube channel, Way of the Ray Bender, for random and occasional personal insights on optical system design. Lens designers are often called "ray benders" because they spend a lot of time tracing rays through optical systems, correcting and balancing aberrations as rays bend through lenses and bounce off mirrors. Not everything in optical design and engineering can be explained through writing. So, Way of the Ray Bender is Ronian's way of translating some concepts into short basic and advanced oral tutorials.