In this post I use the term "eye light" to refer to a soft, diffuse slash of illumination that spills across the face from temple to temple and is meant to subtly enhance the general region of the face around the eyes.
I use the term "catchlight" to mean a specular glint on the surface of the eyeball intended to make the eyes more lively.
With that distinction in mind, do you have any equipment and light placement suggestions and techniques to recommend in order to achieve a subtle, beautiful eye light on an actress in a period piece?