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<?php 
      $image = get_field('blog_image');
      if( !empty($image) ): ?>
       <?php
        $size = 'large';
        $size = $image['sizes'][ $size ];
        $alt = $image['alt'];
       ?>
        <img class="blogSingle-img" src="<?php echo $size; ?>" alt="$alt" />
<?php endif; ?>

//Full Size image

<?php 
    $image = get_field('site_lot_map');
    if( !empty($image) ): ?>
     <?php
      $size = $image['url'];
     ?>
     <img class="blogContent-detailsImage" src="<?php echo $size; ?>" alt="" />
<?php endif; ?>