Thanks Click, Quasimodo, Eli
First I had to correct all 800 pictures in Lightroom and Photoshop, and than I "connected" them in Proshow Producer 5. Magnificent and very user friendly program, and it's not to expensive. Ideal for simple editing of pictures and video.
Thanks again for your comments
Canon EOS 1Dx, 16-35 f2.8 L II, 70-200 f2.8 L II, Extender EF 2x III, Speedlite 600 EX-RT, Gitzo 3541L, Ballhead 3780QR, B&W S03 F-PRO Serie E 77mm & 82mm circular polarizer, SANDISK EXTREME PRO 16 GBx2, RODE stereo microphone, TC-80N3 timer cable remote control, Manfrotto PRO VII LINO collection