Jazz Tangcay Artisans EditorOne of the first conversations cinematographer Douglas Koch had with director Deepa Mehta was about his using a handheld camera in shooting “Funny Boy,” a coming-of-age story set during the civil war in Sri Lanka.The plan was to allow complete flexibility as Koch worked with two actors — Arush Nand and Brandon Ingram — playing the role of Arjie from boyhood to adolescence as he discovers his sexual identity.