Demonstration of different lighting conditions in a light tent. 
<p>Top left: good conditions, the subject is in the center of the tent
Top right:  lack of brightness, because the subject is in front with no direct light. 
the same with bottom left and right. 
</p>
Solution: Opening the tent at the frontside and using an additonal flash for the lower areas to avoid shadows. All in all, the available light in the tent is not sufficient.
<a href="//commons.wikimedia.org/wiki/User:Coyau" title="User:Coyau">Coyau</a> (derivative work by <a href="//commons.wikimedia.org/wiki/User:Hubertl" title="User:Hubertl">Hubertl</a>)
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<li><a href="//commons.wikimedia.org/wiki/File:Camembert_de_Normandie_(AOP)_12.jpg" title="File:Camembert de Normandie (AOP) 12.jpg">File:Camembert de Normandie (AOP) 12.jpg</a></li>
<li><a href="//commons.wikimedia.org/wiki/File:Camembert_de_Normandie_(AOP)_14.jpg" title="File:Camembert de Normandie (AOP) 14.jpg">File:Camembert de Normandie (AOP) 14.jpg</a></li></ul>