Please find below code to get custom posts:- 
$args = array('post_type' => 'all_photos','tax_query' => array(array(
                                        'taxonomy' => 'photo',
                                        'field'    => 'term_id',
                                        'terms'    => $term_id,
                                    ),
                                ),
                            );

$post_query = new WP_Query($args);