The goal of your answer is to show your growth mindset relative to equipment. You want the interviewer to understand that you view constantly growing your skills as a professional goal. Additionally, you want the interviewer to see you as a proactive self-starter when it comes to learning.

Focus on the specific equipment you are learning, why you chose to learn more about the equipment, and how you intend to use this knowledge in the future. If possible, tie your answer back to specific imagery found in your portfolio.

Continuously working to learn and grow myself as a photographer is incredibly important to me. I'm always on the lookout for new gear and new ways to work. A good example is my recent purchase of a Lensbaby. I've always been interested in barrel distortion and in-camera focusing effects, and I came across the Lensbaby in some of my research. I was immediately drawn to the unique looks achievable by manipulating the lens bellows. I love using it as a unique way to capture routine images.