Most of the masters of Denver's current photo scene weren't even born when now-ninety-something Hal Gould opened his House of Photography in Cherry Creek in 1955. And he was an accomplished photographer long before that, having gotten his first camera in 1932. He went on to help establish the Colorado Photographic Arts Center in 1963, mounting shows as the exhibition director of the group, and then in 1979, he opened his Camera Obscura Gallery directly across from the Byers-Evans House, just west of the Denver Art Museum. In the intervening decades, Gould put together one impressive show after another, some highlighting the efforts of internationally known photography stars, others featuring works by top Colorado shutterbugs. And Gould would probably keep going for decades more, but with a weak art market as a result of the recession — not to mention that he's really earned a rest — he and partner Loretta Young-Gautier recently decided to close the gallery. The term "end of an era" is thrown around a lot, but this time that poignant phrase is the perfect description of what's going to happen when Gould finally locks up Camera Obscura at the end of April.