If you are a photographer looking for a low competition niche market that is in high demand during the spring and summer months, you might want to consider offering ERAS photos. ERAS stands for Electronic Residency Application Service, and it is the system that medical students use to apply for residency programs in the United States. As part of their application, they need to submit a professional photo that meets certain specifications and showcases their personality and professionalism. This photo can make a big difference in their chances of getting an interview and matching with their preferred program.