Here is a picture I shot during a photo session. The exposure is right, and the model is photogenic. Nonetheless, I am far from satisfied. Why?
Now, let’s zoom in to model’s eyes. There is one major flaw: No catchlight!
Now, let’s look at another picture. In this one, you can see the catchlight in the model’s eyes.
Catchlight makes a subject look livelier. There are several ways we can create catchlight in the eyes. We can, for example, get the subject to face the sun or light, but this is not always possible. Alternatively, we can fire the flash into the eyes; one possible downside of this approach is that it may render the picture with less 3D-feel. Finally, we can use some white surface to reflect sunlight into the eyes of the subject, but this technique is somewhat cumbersome.
In my earlier post, I mentioned that many photographers dislike flash. But you see, flash can create catchlight in the eyes. It’s not so bad after all.