I am a firm believer that light is the most important aspect of a photo. It’s what sets the amateurs from the professionals and what makes a subject come to life. While going into the extreme details of light is another post…well another FEW posts, I wanted to give a quick tip. Catchlights are one of the most important aspects of light when you are shooting portraits. An image without catch lights can make the eyes look lifeless and you can lose your subject.
I had to edit it out a bit but this image had hardly any catchlight in the eyes and I just edited it out to show you what it would look like if the eyes have no catchlights. It was overcast outside and the light was coming from directly above us.

Now here is a photo with the optimal catchlight – upper left corner of the eye. If you compare it to the above image you can see his eyes don’t look lifeless and it even gives his eyes some shape and contouring. To achieve this look you want your light source to be at around a 45 degree angle from the subject on your left.

If you want to play around with light I found this little test that is a great way to learn how light affects the shape and look of an object over at the Digital Photo School website.
For more on catch lights see these other amazing blog posts :
Moms with Cameras – Where you place your light matters
And if by chance you didn’t pay attention to where the light was coming from all is not lost. I am also a huge advocate of getting everything right in the camera BUT mistakes are easy to make and it’s hard to be thinking about so many things at once. Here is a Lightroom tutorial on how to add catchlights from SLR Lounge.