Demonstration of what happens when taking pictures using a <a href="https://en.wikipedia.org/wiki/perspective_correction_lens" class="extiw" title="w:perspective correction lens">perspective correction lens</a> -- lens shifts upwards and building is captured without any vertical perspective.
<a href="//commons.wikimedia.org/wiki/User:Howcheng" title="User:Howcheng">User:Howcheng</a>
2006-09-11
<span class="int-own-work" lang="en">Own work</span>