Sinespejo

Alguien sabe algo de esta lente , creo que es bastante extraña no?
https://www.flickr.com/photos/100898749@N02/18482191290/in/dateposted-public/
https://www.flickr.com/photos/100898749@N02/18643563056/in/dateposted-public/
https://www.flickr.com/photos/100898749@N02/18482124058/in/dateposted-public/