One of the biggest problems with dealing with reflective surfaces while shooting an image is getting your light source in the reflection. It’s really tough to deal with, but Gavin Hoey over at AdoramaTV states that it’s all in how you think about the reflection.
He sets up a model with the snazziest sunglasses around then positions the light right in front of the model. You begin to see the reflections. Then Gavin states that if you move the position of the light, you’ll move the position of the reflection. So he keeps moving the light around until he can find the right angle.
Because the reflective object is directly facing the camera, Gavin ends up moving the light above and in front of the subject in order to get the effect that he’s going for. Of course, this all depends on what kind of lighting effect you’re going for and the position of the reflective surface in the image. But Gavin’s trial and error is a nice starting point.
The video showing How to Control Light Source Reflections on Glass is after the jump.