/**
  * @return ThumbFinder
  */
 private function getThumbsFinder()
 {
     if (is_null($this->thumbFinder)) {
         $this->thumbFinder = new ThumbFinder($this->config->getPhotoRepository(), $this->config->getPhotoThumbRepository(), $this->config->getPhotoThumbGenerator(), $this->config->getPhotoStorage(), $this->config->PhotoThumbPresenter());
     }
     return $this->thumbFinder;
 }