<?php

        $args = array(
            'post_type'=>'Slider',
            'posts_per_page'=> 1
                );

        $mypost = get_posts($args);

        foreach($mypost as $post):setup_postdata($post);

        $portfolio_images = wp_get_attachment_image_src(get_post_thumbnail_id($post -> ID), 'full');
         $custom_post =get_post_meta(get_the_ID(), 'link', true);
         ?>
         //mark up


         <?php endforeach;?