I decided to choose Burton for this week's photo project because he has especially hard eyes to photograph in various lighting situations. Again, I've chosen a studio shot with a dark background. I wanted the shot to be more dramatic, so I planned for back lighting.
Burton is deaf, and due to his pigmentation, his eyes include one blue, and some spots of blue in the other eye. When I photograph him, then, I am trying to add a smaller catch light (which means I need to distance my frontal light source), and not have the light reflect too highly on the blues. Sometimes they can be mistaken for catch lights.
Burton is a relatively calm (if you have a treat in your hand) dog who knows many commands and will "sit" or "down" for a treat. I used an off camera flash on a light stand just over and behind Burton's right shoulder. I used an umbrella light spaced three feet from the right tip of Burton's nose (camera left for me). This allowed the catch lights to remain small. I then simply used my treat to get him to look exactly where I needed him to focus, and as you can see, the catch lights are in the 10 o'clock position without affecting the blues in his eyes.