A visitor passes a street photography portraits series by US artist Bruce Gilden at an exhibition during the Photokina in Cologne, Germany, Tuesday, September 20, 2016. More than 1000 exhibitors from 51 countries show the latest developments in digital imaging until Sept. 25 at the Cologne fair halls. (Photo by Martin Meissner/AP Photo)





A model wears virtual reality glasses VR ONE Plus from Zeiss at the photokina trade fair in Cologne, Germany, 20 September 2016. The world's largest trade fair on photography, photokina, features some 1,000 exhibitors from 40 countries and will take place from 20 until 25 September 2016 in Cologne. The trade fair also features various photo exhibitions. (Photo by Oliver Berg/EPA)





A visitor checks out the new Sony Alpha 99 Mark II DSLR camera at the Sony booth on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





Visitors walk past an advertising poster of Panasonic Lumix digital cameras at the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





Visitors watch a virtual reality visual presentation at the Nikon booth on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





A woman takes a picture with the Impossible I-1 analog instant camera, the first new camera system working with the original Polaroid photo format, at the booth of the Impossible project on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





Visitors check out DSLR cameras at the Nikon booth on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





Visitors take pictures of a DJI Phantom 4 Quadcopter drone on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





A visitor checks out a lens at the Tamron booth on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





A visitor checks out a telephoto lens at the Sigma booth on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





A visitor looks at telephoto lenses at the Canon booth on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





A journalist checks out the Vuze 3D 360 video camera at the Vuze booth on the Photokina, the world's largest fair for imaging in Cologne, Germany, September 20, 2016. (Photo by Fabrizio Bensch/Reuters)





A visitor stands in front of a portrait taken by artist Bruce Gilden at the “Masters of Photography” exhibition at the Photokina trade fair in Cologne on September 20, 2016. The fair for the photographic and imaging sector, that is running from September 20 to 25, 2016, presents products from image capture, image processing and storage to image output. Photokina also includes a program of events with congresses, workshops, symposiums and photography exhibitions. (Photo by Patrik Stollarz/AFP Photo)