Great job!! the photography is science and for the same reason an art, the techniques or the technology itself are an important part of the modern industrial history and fine art...you must to o an second part about the 35mm history with fisrst Oskar Barnak camera or the SLR revolution, the german photo industry rise and decline, the japanesse assault to the market, the most legendary cameras and lenses as Leitz, Carl Zeiss, Pentacon, Nikon, Canon, Exacta, Praktica...too much on a short space of time...