IF YOU GO What: "From the Pinhole to Digital Photography,'' an exhibit of works by photographers from the Dominican Republic When: Now through Nov. 15, Monday through Friday, 10 a.m. to 6 p.m. Closed Saturdays and Sundays. Where: Essex Art Center, 60 Island St. ABOUT THE ARTISTS Vitico Cabrera has been a photographer most of his life. His family owned a photo studio. He has shown his work throughout the world. Alex Guerrero, a visual artist, is one of the most popular poster designers in his native country. He studied at the School of Applied Arts in Prague. Elka Diaz is one of the most prominent female photographers in Dominican Republic, although she was formally trained in traditional Dominican folk dancing and singing. Jose Joaquin Lama is known for capturing the moment in a way that stretches the imagination.