A <a href="https://en.wikipedia.org/wiki/jack_plug" class="extiw" title="en:jack plug">jack plug</a> with cold white balance. Note that this version has a colder color balance than the real jackplug.
<a href="//commons.wikimedia.org/wiki/User:Daniel78" title="User:Daniel78">Daniel78</a> retouched by <a href="//commons.wikimedia.org/wiki/User:Twdragon" title="User:Twdragon">Twdragon</a>
Nikon D300