I'm new to night photography. Recently I've gone out and tried to shoot the milky way and last night I took a shot at the northern lights. I shoot with an E-M1 and 12-40 lens. I focused by putting lens in manual and setting it to infinity. I'm content with my photos as far as focus is concerned. What I struggle with is composing my photo. I see NOTHING in my viewfinder or LCD. All I've been doing is pointing the camera in the general direction of my subject and keeping my fingers crossed. Am I missing something obvious? Is there something I can do to my camera so I can see what I'm doing so I can compose my photo instead of point and pray?