Process a negative with your brain only!

[johannielscom]

Have a look here, pretty simple trick that only requires some time...

😀

 

[Photo_Smith]

Here's another
http://www.moillusions.com/2006/06/black-and-white-spanish-castle-in.html

 

[russelljtdyer]

Process a negative with my brain only!? I can't do that. I'm too brilliant. All of my photos would be overexposed.