exptime 12 ; set exposure time to 12 seconds start ; start exposure loop exptime 3 ; ';' delimits comments start # so does '#' exptime 12 start exptime 15 start exptime 12 start exptime 27 start exptime 12 start exptime 39 start exptime 12 start exptime 51 start exptime 12 start exptime 63 start exptime 12 start exptime 75 start exptime 12 start exptime 87 start exptime 12 start exptime 99 start exptime 12 start exptime 111 start exptime 12 start