Today I did a big mistake. I took only one lens (the 135mm Canon LTM), stuck a dark red filter on it and have been fighting with proper exposure for the whole walk to lunch. For some reason, that dark red filter worked on all of my lenses, but not quite well on the 135mm Canon. I ended up with a big number of either over exposed or severely underexposed pictures. What you see below are the only ones worth showing.