Sigma-4 (elitar sigma) RA-1942G
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/33104187@N04">Aleksander Markin</a>
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/33104187@N04/15327624613/">Sigma-4 (elitar sigma) RA-1942G</a>