Dr. Brian Matsumoto is a retired research scientist who has worked for 30 years documenting experiments with technologically advanced cameras. He now spends his time photographing with a variety of cameras and lenses, and enjoys expanding a camera's potential by pairing it with specialized optics such as microscopes and telescopes. He enjoys spending time outdoors and carries his camera on all of his hikes to photograph nature.In addition to the seven books he has written for Rocky Nook, Dr. Matsumoto has published several articles and has had his photographs published in numerous periodicals. His photographs have also appeared on the covers of American Laboratory, BioTechniques, and BioPhotonics. He is experienced in the technical aspects of photography and has taught courses on recording scientific experiments with digital cameras. Dr. Matsumoto recently served as a judge for the Olympus BioScapes International Digital Imaging Competition.

Carol F. Roullard has been an avid photographer since her high school years, where she first experimented with black-and-white artistic composition. Since then, she has continued photographing mainly nature and architecture. Ms. Roullard has used a variety of cameras covering a wide range of makes and models, from simple point-and-shoot to complex professional-level cameras.In addition to co-authoring six books for Rocky Nook, Ms. Roullard produces award-winning fine art photography and utilizes her previous art business experience to manage her online gallery and present her work at art shows. As a former Project Management Quality and Compliance Engineer, she spent a number of years developing procedural and quality control methodology for IT projects. In addition, she has developed and conducted training sessions covering best practices for procedural and quality control, breaking down complex subjects into easy-to-use approaches to learning.