In 1966, when Dennis was given a camera to document an upcoming Peace Corps experience, his life's direction was forever changed. He found himself immediately challenged and frustrated by the difficulty of making his photographs express reality as he saw it. As he became increasingly excited by photography's possibilities, he worked almost as many hours in the darkroom as he was teaching in the classroom. Upon returning from his Peace Corps stint in Tonga, Dennis decided to abandon the security of teaching and began two years of commercial photography training at San Francisco City College. While in school, and immediately afterwards, he offered freelance commercial services in news, public relations, and portraiture to local and national clients. But even as his success creating photograph art, prints and posters began to grow, so also did his lack of fulfillment.
In 1973, Dennis' art, prints and posters took a quieter, more expressive turn concerned mostly with nature's moods, design, colors, and forms. His photographic interpretations were well received and are collected on five continents and throughout the United States. Dennis' work has also appeared in books, calendars, and magazines on a national and local level. For over eight years (1979-87) he owned the Dennis Barloga Gallery at Pier 39 in San Francisco.
However, in 1986, fate intervened again on a twentieth wedding anniversary trip to Paris. A new photographic interest was awakened by the architectural beauty of the city of light. Doors, windows, housefronts, storefronts, cafe scenes all became new subject matter; but mood, design, color, and form were still the primary interest. Since then, Dennis has returned twice a year with the sole intention of capturing on film those moments and places that define the uniqueness and beauty of Europe as he sees it. This new body of art, prints and posters is currently shown at various art festivals in the western United States as well as selected shops and galleries worldwide.