Photographer Paul Gero is no stranger to working under tight deadlines. In the 1980s, he worked for The Chicago Tribune and The Arizona Republic, covering anything from U.S. politics and sports to civil unrest in Haiti. For the past 15 years, though, he’s been shooting weddings and portraits, transitioning his photojournalist eye toward families and newlyweds from his Southern California-based studio, using his acute reflexes to capture fleeting moments that relatives will look back on for generations.

So, at WPPI 2018 in Las Vegas, when he asked to test out a new camera, he was confident that, even within the one-hour time limit he was given, he could create quality portraits for his portfolio.