How do I create a (good) Hair Light?

Question

My attempts at creating a hair light have been less than successful; I can get a hint of highlight but nothing like I see in the pro shots. What are the things that I should be adjusting in terms of location, height, distance, and light modifiers?

Asked by Craig Walker

Answer

I'd put a hair light almost behind the model and a bit high and try to have it very focused so it wouldn't spill into the camera, using a grid or snoot. Something like this:

Answered by che

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