Eos Chaos [SEP] located on astronomical body
Eos Chaos
Eos Chaos is a rough, collapsed area in the Coprates quadrangle on Mars at 
16.8° south latitude and 46.9° west longitude. It is about 490 km long and was named after the Greek name of Aurora, an albedo feature.
Valles Marineris Canyon System.
Eos Chaos is a part of the largest canyon system in the solar system; this great canyon would go almost all the way across the United States. The name for the whole system of canyons is Valles Marineris. Starting at
Nikon 35mm SLR cameras, and older manual focus Nikon lenses could be used with varying degrees of compatibility on the new AF cameras.
Autofocus revolution Canon – the new EOS System.
In 1987, Canon followed Minolta in introducing a new lens-mount system, which was incompatible with their previous mount-system: EOS, the "Electro-Optical System". Unlike Minolta's motor-in-body approach, this design located the motor within the lens. New, more compact motor designs meant that both focus