Corrine Federer, 43, a business manager and amateur photographer, was visiting medieval Muiderslot Castle outside Amsterdam last month when she started taking pictures using her camera’s high-dynamic range, or HDR, feature.
“In order to create HDR images, you take three or more exposures … at the same time, because you then overlap the images and it gives you the full spectrum of light,” Federer told The Huffington Post.
Federer took dozens of photos that day, but it wasn’t until sometime later that she reviewed her HDR photos and saw a startling airborne shape in some of the images.
Federer’s images were analyzed by Ben Hansen, a former FBI special agent and host of the Syfy Channel’s program “Fact or Faked: Paranormal Files.” He believes the images were not faked or manipulated.
“Having reviewed the raw files, there’s no overt indication that the photos have been manipulated with post-editing software,” Hansen told the Post. “The object’s appearance is internally consistent with the rest of the photo.”