Stadt Zürich (ship, 1855) a few minutes. Thirteen men and eleven head of cattle died in this accident, making the sinking of the "Ludwig" by the "Stadt Zürich" the most serious shipping accident known at that time that had happened on Lake Constance. One consequence of the investigations into the disaster was an improvement in the signal regulations: in addition to the white bow light a green starboard and a red port light had to be carried. After the Bavarian ship, the "Ludwig" had sunk, the "Jura" was bought as a replacement, a ship which hitherto had worked on Lake Neuchâtel. She was dismantled,
Colour cast Colour cast A colour cast is a tint of a particular colour, usually unwanted, which affects the whole, or portion, of a photographic image evenly. Certain types of light can cause film and digital cameras to have a colour cast. Illuminating a subject with light sources of different colour temperatures will usually cause colour cast problems in the shadows. In general, the human eye does not notice the unnatural colour, because our eyes and brains adjust and compensate for different types of light in ways that cameras cannot. In film, colour casts can also be caused by problems in development.