On a picture-perfect Saturday in June, the blue sky alive with puffy clouds, the temperature in the mid-70s, Lynda Mischler and Michael Sunderland sat under a tree in Centennial Park playing rummy ...

Columbia resident John Petro ... the amateur photographer said he wanted to capture “an autumn morning” at Centennial Lake in Ellicott City, using his Nikon D810’s 95mm lens.