WOW, all these blunders. Is it any wonder great photographs are ever taken? What about the flaming crash of the Hindenberg at Lakehurst, NJ? That was a great disaster in itself. But what if the photographer had blown the shots of that firery crash? He was shooting with a 4x5 Speedgraphic, 2 frame film holders. Did he have a meter? But he was able to shoot off I think 4 or 5 frames, inserting the film holder, pulling the darkslide, making the exposure, insert the slide, flip the holder, and do it all again! No 35mm, digital, autofocus, auto exposure, zoom lens, 5 frames/second motordrives in those days.